MercedesBenz SLClass (2013)

26 Мар 2015 | Author: | No comments yet »
Mercedes-Benz 2013

Mercedes SL-Class

For 60 years the two SL have had a mystical resonance automotive enthusiasts. They for powerful sportiness, exciting effortlessly superior style, innovations and the ultimate in engineering The Mercedes-Benz SL-Class inherited genes from its forefather, as a racing car. In 1952 it to the international race tracks, saw and It was from this car that derived the first series-production in 1954, the legendary 300 SL gullwing . And since, Mercedes-Benz has been the bar high in the luxury sports car with the SL over five generations.

The unique combination of sportiness, refined luxury and yet suitability for everyday use at the same is what makes the Mercedes-Benz the dream car it is — and it is also lies behind its success sales are concerned. The SL was always of its time technically — when it was rolling off the production for 18 years at a time, as was the case the SL bearing the internal code (from 1971 to 1989). 650,000 SL vehicles have the production halls in Sindelfingen and since 1954, and from the model generation alone which celebrated its premiere in — nearly 170,000 found their way into the of the enthusiasts amongst fans of sports cars.

2013 SL-Class

The new generation of the Mercedes-Benz now being presented is the sixth to the 1952 racing car. In the tradition of the SL it is entering its era as an athlete, aesthete and innovative trendsetter an extraordinarily high utility Mercedes-Benz is initially offering the new SL two engines — as the SL350 a V6 engine and as the SL500 with a V8. The new engines have an output of 225 kW hp) in the SL350 and 320 kW (435 hp) in the SL500 (a increase over the predecessor).

the new Mercedes-Benz SL-Class breathes new into the meaning of the famous SL — super-light — systematic weight reduction. For the time ever, Mercedes-Benz is an all-aluminium bodyshell in series The newly developed vehicle approximately 110 kilograms less a comparable bodyshell made of steel. Nevertheless it is even rigid — and safer than its predecessor . Mercedes-Benz has this through a systematic material mix of aluminium alloys and components which are tailor-made for the requirements, combined with a few portions of high-strength steel and

Although the new SL is even more and has more safety devices on than its predecessor and therefore actually sacrifice some of the saved through the aluminium the scales show some figures: the new SL500 (1785 kg) around 125 kilograms less its predecessor. On balance, the SL350 kg) is even 140 kilograms lighter all thanks to a host of other enhanced details to reduce which Mercedes-Benz has also in the new SL in addition to the aluminium bodyshell.

And measurement results do not just as figures on the page; they are much perceptible and tangible in too. The resulting increase in and lateral dynamics facilitates performance with a decided for cornering. The greater track at both the front (+ 38 mm) and rear (+ 77 mm) serves the handling which is at sporty and agile and keeps the car safe control. Drivers find the new Mercedes-Benz SL-Class more agile than its — sheer pleasure for of a sporty orientation.

There are two variants from which to The SL is supplied as standard with adjustable damping (lowered by ten in the AMG sports package). The active system ABC (Active Body is available as an optional extra. the world over, it has been especially for the new SL.

In keeping with the tradition, the new SL couples its sharpened profile and agile nimbleness a luxurious ambience. Its high-quality and appointments contribute to the exquisite pleasure that can be experienced kilometre of the way. Fine finished with great to detail, shape its style and The levels of comfort here unique in the segment of luxury cars — blend high everyday practicality, for the new SL with top marks where motoring, suspension comfort and on long journeys are

concerned plus its exemplarily low background which is comparable with of a saloon. This all adds up to the that this vehicle is a Turismo in the very best of the word.

The safest and the most

Thanks to the crash-optimised aluminium standard-fit PRE-SAFE® and assistance on the same high level as the the SL is the world’s safest roadster.

more, it is the most frugal one in its The SL350 consumes 6.9 litres 100 kilometres, which is virtually 30 less than its predecessor 159 g/km). The SL500, too, a persuasive set of efficiency figures: 9.1 per 100 kilometres (minus 22%) to 212g/km CO2.

The design, displays all the classic proportions so of the SL. Right from the first the masculine-looking roadster with a tail end is immediately identifiable as a of the current family of sports from Mercedes-Benz. It emphasises its through a multitude of details with loving care.

The generation of the Mercedes-Benz SL-Class offers a vario-roof that can be into the boot using an mechanism to save space, the SL into a roadster or a coupé, on the driver’s wishes and the weather. its predecessor, three versions are for the new SL: painted, with a glass or with the unique panoramic featuring MAGIC SKY CONTROL. The roof switches to light or at the push of a button. When it is virtually transparent, offering an experience even in cold In its dark state the roof welcome shade and prevents the from heating up in bright

With two innovations, the new SL remains to its tradition as technological trendsetter:

VISION CONTROL is a new intelligent, windscreen wiper/washer system. Its of channels supplies water to the just in front of the laser-cut blade lip. As a result, spraying, there are no gushes of on the windscreen to disrupt visibility, and yet the is kept clean.


Also the Frontbass system uses the spaces in the aluminium structures in of the footwell for housing the bass As a result, the new SL features clear, bass sounds that a concert hall ambience with the top down.

Both are part of the extensive standard of the new SL.

Design: Masculine, muscular physique

The design of every SL has an obligation to a great legend, and yet it is very clearly looking to the The designers have unmistakably the youngest generation of the style-defining on the basis of tradition, but also new perspectives and visions. This has in a formal identity and the high aesthetic quality.

In the interplay innovation and tradition we have a stylish, sporty and elegant sports car with the classic, hallmark SL proportions: the long is followed by a compact, set-back compartment. A broad, muscular, tail end completes the picture.

boss Professor Gorden The athletic, sports star’s with its masculine, muscular says a great deal the new SL and confidently emphasises its status as the heart of our brand. At the same discerning athletic standards are met by sculpted surfaces formed by a few lines and beautifully crafted The traditional design elements our rich history are more visual quotations. They of the courage and the pioneering spirit have shaped our brand, and these properties in a contemporary way with enthusiasm and passion. top technical performance and innovations, it is this which makes the new SL an character.

The front signals a presence

Visually, the new SL is clearly out as a prestigious member of the current sports car family. At first this is evident from the upright classic sports car grille which has featured on all the vehicles with a sporty — right from the generation of the SL. The central star in the grille points the way to the future: it is a reinterpretation of the famous trademark, now runs into the centrepiece organically flowing contours.

more, on the new roadster the designers waived the classic

separation of the and the radiator grille. The lower of the grille now dips into the supporting the pronounced V-shape and in more formal presence. In to this, the steeply positioned grille lengthens the bonnet in terms. Two air outlet grilles, with two chromed fins, their roots in Mercedes-Benz’s dynamic design repertoire. A sculptured edge — from the upright radiator — draws across the bonnet in a taut arch and organically into the A-pillar.

positioned at an angle, headlamps far on the outside flank the distinctive and the broad air intake, giving the new its own inimitable look. It appears and it does also radiate a restrained aggressiveness.

The standard-specification ILS are characterised by very high-quality for the low and main beam which been styled with attention to detail, plus a bracket surrounding the main and the flared arrangement of the indicator and sidelights. All the further functions LED technology — such as the curved sidelights and the horizontal of the daytime running lamps in the sections of the bumper.

The silhouette muscles with character

A amount of artistically styled define the athletic yet smooth of the flanks. The shoulderline rises the headlamps and stretches like a muscle over the entire of the vehicle and into the tail Side grilles with in the front wings stylishly the classic SL legend and form the point for a feature line. structures the proportions and lends the a visual forwards thrust at a standstill. It tapers out in the tail as a discreet line.

Free-standing mirrors located on the beltline not support the modern character of the view; thanks to this they also improve of the road.

Depending on the engine various light-alloy wheels are in 17-inch and 18-inch versions. The bordered wheel arches are for a maximum size of 19 inches at the and 20 inches (only in the case of at the rear.

Muscular tail end

A number of sweeping lines the broad, clearly defined end. Elegantly flowing and at the time racy and muscular, it the roadster’s distinguished finishing that is so full of character. to the boot lid with its steel and plastic panelling, it has been to stow the aerials out of sight the vehicle so that they do not the flowing lines in the rear This is also the case the roll-over protection, which hidden from view in the and is only activated in case of

Tail lights with LED Performance technology highlight the of the tail end. They inwards to a point and have a kink in the contour. The rear fog is located centrally between two exhaust tailpipes. A horizontal line in the lower area of the provides added emphasis of the effect.

The colour range for the encompasses twelve different These include the BRIGHT diamond white and the special cerussite grey metallic — the first matt in the standard-specification paint range for a model series.

Interior and Luxurious comfort and sporty

The interior of the new SL impresses with its amount of space, high-quality high sense of perceived and lovingly crafted details tangible and visible precision.

with its predecessor, the new generation of the SL is longer (+ 50 mm to 4612 mm) and wider (+ 57 mm to mm), providing more for more comfort in the interior, Shoulder room (+ 37 mm) and elbow (+ 28 mm) have been increased, the dimensions normally found in vehicle class. Clear create a formally coherent space within this interior. Perfectly in tune the roadster’s character, it combines the atmosphere of a high-performance sports car the comfortable, stylish ambience you to expect in a luxurious touring

The wrap-around effect has class

In with the beltlines on the doors and the shelf, the upper section of the creates a formal unity and with the exception of the black — it is always styled in a colour. Generously used trim extends from the console across the dashboard the doors, creating a pleasant effect. Three types of along with two different trim finishes are available brown walnut, satin-finish brown poplar, high-gloss ash), plus two differently longitudinal-grain aluminium trim (light or dark). The links the dashboard, centre console and trim panels have styled so that they are and they support the wrap-around Minimal gap dimensions please the eye and the high precision with the SL is manufactured.

High-quality instruments add appealing flourishes

In the area of the four circular ventilation provide some striking touches. Set in metal, these air are reminiscent of jet engines and are a contemporary, interpreted way of paying homage to the of Mercedes-Benz sports cars.

two tubes the sporty instrument boasts classic round with three-dimensional graduated back-lit dials in the centre of the and rev counter, plus high-quality In the centre between the two round a colour display provides from the on-board computer and vehicle functions. The system is via a three-spoke sports steering with shift paddles and function buttons. The steering featuring a flattened bottom has an ergonomic grip area and spokes, and is covered with leather — in the airbag too.

A large COMAND display in the centre of the vehicle care of the numerous display for the entertainment, communication and navigation A particularly eye-catching feature on the of the centre console is a new DIRECT shift lever. Small and it is a true visual highlight. the central rotary knob for the COMAND system, it is optimally from an ergonomic point of Located in front of these is the lidded compartment for the two cup holders.

on the stylish ambience

Making dynamism visible is it’s all about where the lighting in the SL is concerned. The fibre-optic with three colour to choose from stretch the beltline and the door centre in one tier over virtually the length of the door, behind the on the dashboard and in the front panelling.

with a noble, sporty

The new Mercedes-Benz SL-Class’s fully seats with a memory meet discerning and wide-ranging regarding seating comfort, safety and sportiness. The ergonomically seats themselves are more than in the predecessor and emphasise the sporty character. This is in visual terms by sophisticated seams and by a layout which depending on the choice of leather. excellent lateral support, the also offer high of comfort.

The superstructure of the seat and backrest is formed by a weight-optimised construction of steel and sheet panel parts. This also makes a significant towards transverse support for the in the event of a lateral collision. In a thorax-sidebag is installed in the backrest. A developed combination of a sine core principle with matting and a foam layer as ensures support and comfort.

the driver and the passenger can adjust seats precisely according to requirements and body measurements. in the standard equipment there are electrical adjustment options for doing so, enabling fore-and-aft and adjustment to be made just as as the seat cushion angle, depth and backrest angle The crash-responsive head restraints are adjustable for height. The range of also includes 4-way support adjustment — feature is housed in the centre of the backrest cover. The occupants can it via the central control panel and the unit. Using the memory the current seat position can be and on the driver’s side this applies to the positions of the steering and exterior mirror.

A very solution has been found for access to the rear compartment for loading — in both and functional terms. A button on the of the backrest operates the backrest electrically and enables the seats to be forwards and backwards in order to sufficient room to manoeuvre.

part of the standard specification is a occupancy sensor with child seat recognition on the side — for child with a transponder specially for Mercedes-Benz.

For enhancing comfort further, in the case of the leather the seats are covered with leather. This specially leather reflects the heat of the sun in particular where the appointments are dark, it reduces the extent to the surface heats up. In combination the optional active ventilation the seat comfort is tangibly

The following seat variants can be as an optional extra:

Luxury seats with active ventilation: it ensures a pleasant climate. Leather appointments are a for this option

Active seat package: three air in the lumbar area can vary the of the seats in order to prevent Elongated air chambers in both of the cushions on the backrest ensure lateral support

Dynamic seat: the dynamic multicontour is an enhanced version of the multicontour It automatically adjusts the lateral of the backrest in accordance with the driving situation. In order to do it varies the air pressure in the seat on the backrest electropneumatically, depending on the angle, lateral acceleration and

Health and comfort-conscious climate

The panel for the standard-specification luxury climate control THERMOTRONIC separate temperature adjustment for the and passenger has been redesigned and Mercedes-Benz has placed particular on new technologies for saving energy. include a window demisting integrated in the base of the interior It measures the window temperature and humidity and transmits these to the climate electronics. They can use to determine whether the windscreen has up. If this is not the case, in A/C operation it can adjust the compressor in the background if no is necessary. In other words: to the sensor, the compressor can be operated as saving drive energy. The A/C can remain permanently active. A advantage is that, as the air conditioning dehumidifies and cools as much air as dry eyes are prevented — a gain in terms of comfort.

The air is also linked to the ECO start/stop and can therefore also regulate the during the stop phases.

So SL drivers can enjoy an open-air even when the weather is the innovative neck-level heating AIRSCARF is available as an optional — as was the case with the Warm air flows through a at the front of the head restraints, and the directs it around the head and area of the occupants.

Room for and lots of equipment

Suitability for use is a key word which is traditionally extremely seriously at Mercedes-Benz even in the case of vehicles to be very sporty. This is why the in the new SL will find plenty of facilities for larger and smaller alike. In addition to the glove the centre console offers stowage compartments within reach:

One of these is at the front the air-conditioning control panel, can be optionally fitted with two cup or with an ashtray and one cup holder

A stowage compartment beneath the can be used for the safe storage of a iPod ® or similar, for

A centrally located rear box a retractable luggage cover the range. A bottle holder is here as part of the standard whilst a fire extinguisher is as an optional extra

A lockable box behind the driver’s seat additional stowage space. Its is automatically closed when the is locked.

In the lower section of the trim, a long, open pocket offers further, accessible stowage space. As no loudspeakers have to be fitted in the thanks to the Frontbass system, makes sensible use of the space here by adding an extra compartment, which can be used for an for instance.

The designers have thought the details through: but useful items can be fixed in by a net on the centre tunnel of the passenger’s

The design of the boot is largely by the vario-roof, which has to be housed in the part of the boot when the is open. In total the new SL offers capacity of up to 504 litres — 364 with the roof stowed. is always room for stowing or two golf bags without any at all, thanks to the optimised design.

A luggage cover can be adjusted lengthwise with a prevents pieces of luggage colliding with roof in the boot when opening the Only when the cover is to the rear can the vario-roof be opened. wanting to use the entire boot when the roof is closed can the cover to the front or remove it

At the press of a button, the roof stowed in the boot can be tilted by about 25 degrees to make and unloading easier — as was the in the predecessor (Easy-Pack system).

The and the TIREFIT filler bottle are in a stowage compartment in front of the which can be accessed by lifting up the floor.

HANDS-FREE ACCESS ‘kick’ to open

One of the new products and from Mercedes-Benz is a system as HANDS-FREE ACCESS, which is in the KEYLESS-GO package. It is available on for the new SL for the first time anywhere in the and it allows drivers to operate the lid without using their This work is taken of by a hydraulic drive system, for the control signals are given by the SL without touching anything, but by as though to kick the area of the bumper with their doing so activates this automatic comfort-increasing equipment. is the only manufacturer to offer a which not only opens but closes the boot lid automatically.

the innovative convenience function ACCESS there is no longer any for drivers to have to get annoyed by to put their purchases and other down on the — often — ground when out and when they literally their hands full, in to reach for the handle. Should an ‘kick’ result in the boot lid or closing without the driver this to happen, a second will correct it. When occurs, the automatic system the procedure and reverses the effect of the given in error by actuating the lid against the original direction of — in the case of unintended the second kick closes the lid again.

An appropriate safety facilitates unhindered use of the HANDS-FREE system. An acoustic signal the information that an opening or procedure has been initiated, and an reversing function stops the lid as soon as the system recognises there is an obstacle blocking the lid.

For the HANDS-FREE ACCESS to be included, the vehicle must be with KEYLESS-GO — allows non-contact access to the In addition to this the correct vehicle key has to be in the vicinity of the vehicle, so in to open the doors it can, for stay in the driver’s coat or handbag. In order to activate the ACCESS system for the boot the KEYLESS-GO key must not be further 1.5 metres away from the end of the vehicle.

Body and bodyshell: comes up trumps

Cars are increasingly safer, more but often heavier as well. The new SL not only stops this it turns it around. In spite of comfort, performance and safety, it is 140 lighter than its predecessor.

The part of the weight-reduction diet is from the eyes of the observer of the SL. the aluminium outer skin is a bodyshell made almost from aluminium, only few components being made other materials. The even magnesium is used in part for the behind the tank. The A-pillars and the frame are of steel sheet incorporating high-strength steel For these elements steel is the solution to provide survival for occupants in the event of the vehicle

The bodyshell of the Mercedes-Benz SL-Class is the all-aluminium bodyshell to be produced in series at Mercedes-Benz. This new development weighs 254 kilograms and is 110 kilograms lighter than a steel bodyshell. Further lightweight design features the additional weight unavoidably by the increased comfort, the new assistance and other technical features. the bottom line an enormous advantage remains for the new SL. As the SL500 it 125 kilograms less than its while the SL350 weighs 140 less than its previous And its preceding model already had a aluminium bonnet and doors.

The is rather as if a heavyweight-class passenger had got out of the car and their heavy flight too says Dr Thomas Rudlaff, for the aluminium bodyshell at Mercedes-Benz. The is perceptible and measurable. Less means more dynamism and consumption. In other words: the enjoyment increases and the environmental decreases.

For the roadster the aluminium is superior to a steel construction

The at Mercedes-Benz did not rest content weight benefits alone. The structure had to be superior to a steel in terms of rigidity and comfort as In order to attain this objective, developers consistently for an intelligent lightweight construction, and many new paths to do this. single component of the aluminium was specifically optimised for its particular and expected loads. Thus, processes are used to make kinds of aluminium depending on the use the is to be given: the parts are made by casting or vacuum die casting, into extruded aluminium or into aluminium plates of that vary within one and the component; these are what are as the tailored welded blanks. in numbers, the bodyshell weight is up of: 44 percent cast aluminium, 17 aluminium sections, 28 percent sheet metal, 8 percent and 3 percent of other materials.

At the production facilities the parts are using diverse load-adequate methods, some of which are processes. Secure joints are for example, by MIG welding, hemming, self-piercing rivets, flow bolting, or friction stir — a joining method by a highly resistant weld is produced by means of friction a method particularly well-suited to on account of its low melting point.

highlights of the bodyshell:

The firewall is at the largest aluminium cast made in large series for bodywork

Many sheet parts are designed in such a way for the first time they can be from 100-percent recycled saving 80 percent of the energy in their production.

The main consists of a 3-layer shaped made from thin, hollow sections, welded by friction stir welding.

The members in the vehicle front end are using high-pressure hydroforming technology, which enables the of highly complex and robust permitting optimum use of reduced spaces.

The door sills members) consist of 1.7 metre-long, extrusion-moulded aluminium sections; provide rigidity in the lateral and safety in the event of a collision. chamber distribution makes a minimum component weight with optimum characteristics.

The is made of aluminium sheet with a reinforcement of varying (3 different thicknesses depending on the a so-called tailored welded TWB).

The rear sector is a MIG welded frame with a chilled cast longitudinal as its central element. This is employed in the SL for the very first in automotive bodyshell construction.

The sector floor frame is closed by floor sheet panels and the boot tub made by die-casting.

The boot recess is from recycled sheet

The central member connects the end with the rear sector The mounting points for the drive the transmission cross beam, the tunnel braces and the seat points on the tunnel side are all into a single element. The thicknesses and rib distribution are oriented towards the requirements and loads.

other components were bionically, i.e. based on from the natural environment. structures reduce the vehicle compared to a classic design further.

The sum total of all the design leads to a lightweight, torsionally and rigid bodyshell with an rigidity/weight ratio. It was possible to the bodywork’s torsional rigidity by than 20 percent over the highly rigid preceding series. This is confirmed by of the new SL’s torsional strength at 19400 Nm per degree the roadster an absolute top value (its already reached 16400 Nm per

Meets the highest safety

At the same time the high-strength elements of the aluminium bodyshell the new SL even safer than the model in the event of a collision. sections, connecting cast and a double-thickness plate floor a passenger compartment that is as lightweight as it is sturdy. Two aluminium in each door together the side sills (very thanks to their internal structure) and crash-resistant seats the greatest possible survival in the event of a side collision.

A end deformation zone acting on levels and in which the aluminium axle subframe is integrated as an third longitudinal member, collision forces to a large conducting them past the compartment. And in the rear, too, is sufficient energy-absorbing deformation A structural cage made chilled cast longitudinal transversal sections and a cast tank separation bulkhead contribute to this. This is where the fuel tank is in a crash-protected manner above the axle. This way all the

statutory requirements are met as well as the even ones from Mercedes-Benz.

marks for NVH comfort

Thanks to its aluminium bodyshell concept, the new SL is unique among the roadsters in of NVH comfort (noise, vibration, One contributing factor towards its vibration and road roar is a very rigid connection the front section and rear allowing relaxing travel over long distances, and at the time offering impressive dynamics.

Although aluminium a higher sound emission and level than steel, the new SL is the vehicle in its class. Mercedes-Benz for the acoustic disadvantages of aluminium by of a consistent sound insulation with targeted adaptation of the damping materials to each zone, and through the use of innovative materials:

A special firewall with variable mass and a significant heavy layer attenuates engine noise.

In with the plate floor, foam-backed carpeting with no seams reduces the roll of the vehicle in the interior.

A spray-on attenuates the structure-borne sound in the interior and exterior.

Textile arch linings, acoustically shield plates and bodyshell elements for critical sectors contribute towards a smooth

Damping in the rear wall cross member and boot elements as well as in the forced openings prevent disruptive and wind noises from themselves unpleasantly noticeable in the interior.

A further contribution to the interior acoustics is the laminated windscreen with acoustic The transparent, highly resilient absorbs the vibrations of the windscreen and the perceptible sound level in frequency ranges.

The precision on the acoustics goes so far as to ensure the hydraulic pump for the electrohydraulic is encapsulated and decoupled from the In addition to this, a newly insert nozzle sees to it the pressure pulsation in the pump is to a minimum right from the This means that noises are only barely for the driver and passenger.

The doors and the too, are lightweight

The intelligent mix is completed by the boot lid, of design (SMC = sheet compound). It consists of a single-shell material panel mounted on a reinforcement. Both materials virtually identical thermal coefficients and complement each very well. The interior construction permits maximum with minimum use of space, the plastic panelling allows the integration of the aerials for navigation, radio and mobile telephony out of in the rear area so that the SL not need to carry a bothersome stump on its aerodynamically refined

The bonnet of the SL is made from as was that of its predecessor. It was optimised in of form and materials, contributing the outstanding pedestrian protection.

The too, are of a lightweight design and from aluminium. They are from a combination of sheet extruded sections and cast parts, joined by diverse riveting, bonding and hemming. aluminium and steel hinges are and are infinitely adjustable to any desired when opened, so that getting into or out of the car they can securely open at any angle by the space available at the side. is particularly desirable in cramped conditions such as in a garage or car

Unique item of equipment: SKY CONTROL

The proven electrohydraulic — which turns the into a closed coupé a fixed roof in just a few at the push of a button — has intelligently enhanced, with continuing to play the pioneering here. For the new SL Mercedes-Benz is for the very time offering drivers the between three variants of the vario-roof:

The base version is a painted in the vehicle colour

As an a transparent variant with a blind can be selected

The third from which drivers can is the panoramic vario-roof with SKY CONTROL. This glass switches to light or dark as at the press of a button. When it is virtually transparent, offering an experience even in cold In its dark state the roof welcome shade and prevents the from heating up when the rays are very intense. In words: a feel-good atmosphere at the of a button

The operating principle is on the physics of a plate condenser: if the structure is subjected to an electrical particles in the structure position so that light is able to through the glass. If the voltage switched off, however, the position themselves randomly. partially blocks the light, and the remains dark. The control and converter are integrated into the section of the roof, and the switch is in the control console.

In addition to the panoramic effect and transparency at the of a button, MAGIC SKY CONTROL provides an atmosphere of wellbeing. UV and light are also effectively in transparent mode, while increases even more in the darkened mode, thereby to keep the temperature on interior such as armrests cooler by up to ten Celsius compared with green glass.

Since the glass also shields the sun’s rays far more than conventional thermal glass or sunblinds, the occupants of the new SL-Class will also the highest level of climatic at the same time. When with the roof open be unpleasant due to intense heat, the and passenger are able to remain under the MAGIC SKY CONTROL — making an important towards driver-fitness safety, a which Mercedes is well for promoting. Even when the is at a standstill the interior does not since the roof is switched to mode when powered

But MAGIC SKY CONTROL not only the occupants. Some of the strain is taken off the air conditioning, thereby on CO2 emissions.

The frame of the three variants is now made of magnesium. makes each roof six kilograms lighter than in the model, giving the car a lower of gravity, and therefore better

The engineers have refined the mechanism for the roof and boot It now takes less than 20 to open or close the roof

Sophisticated corrosion protection

The aluminium bodyshell of the new SL offers no of attack for corrosion. A sophisticated protection concept ensures the of the brilliant look both of the skin and of the underside of the sheet panels, thus simultaneously the renowned reliability and value of Mercedes-Benz vehicles. The protection was developed and tested on the basis of the burden in different climate of the world and the specific loads the is subjected to.

The foundation for maximum resistance is formed by corrosion-resistant alloys and design features, the few steel vehicle components are all galvanised. High-quality zinc/nickel or special electrochemical insulation prevent contact corrosion aluminium. All the seams are meticulously the surfaces protected through dip priming and multiple coats of Sectors particularly exposed to are additionally protected with to ensure that the pristine of the new car is preserved for a long time.

Light System and LED tail as standard

The headlamps on the new SL have enhanced. As part of its standard the new roadster is equipped with the Light System (ILS) bi-xenon headlamps. A driving indicator, sidelights and the daytime lamps with LED technology the Intelligent Light System.

The lights on the new SL benefit from the offered by the LED technology. LEDs up approximately 150 milliseconds faster conventional bulbs, plus have a considerably longer and conserve current. In the SL’s lights, the LEDs also up with differing intensity in a manner in certain sections of the lights, depending on the light This technology ensures an night design.

Rear lights and rear fog lamps are into the rear bumper. The brake light featuring LED is integrated in the boot lid above the star.

Lightweight construction the microscope: Progress in detail

from the word go the target was the aim was for the new Mercedes-Benz SL-Class to tip the scales five percent less the previous model. Already the benchmark, the predecessor itself was a example boasting various design measures, even bonnets made of aluminium. At the time, the specifications book more comfort, more coupled with considerably consumption and fewer emissions, a more rigid bodyshell and more safety. These would render the vehicle and not lighter — that was The experts calculated a weight of at least 75 kilograms.

Only a construction on a totally new level which included all the vehicle in the equation — could these contradictory requirements. In fact, the developers at Mercedes-Benz succeeded in undercutting the ambitious targets. The new SL500 weighs no than 125 kilograms less the predecessor of the same name. corresponds to a reduction of 6.5 percent. the SL350 even manages to the high expectations even — with its weight of 140 kilograms — equating to less.

Bodyshell. Converting the bodyshell to aluminium cuts its by 24 percent in contrast with a bodyshell featuring comparable (a weight saving of 110 kg). the upper door hinges of aluminium.

Damping. The switch absorber foams to sprayable compositions with variable thicknesses which can be shaped to requirements, plus modified panelling, results in weight in the order of 2.5 kg.

The guide rails for the lift mechanisms are now comprised of instead of steel, amounting to a saving of 0.5 kg.

Vario-roof in magnesium/plastic front part of the roof and the are produced in magnesium/plastic, plus are additional optimisation measures the design of the tubular frame, shelf, rear window and roof frame. The weight amounts to 15 kg.

Glazing. The windscreen is 0.5 thinner, with an acoustic The weight reduction amounts to 1 kg.

The rear windscreen is 0.7 millimetres resulting in approximately 1 kg less

Interior. The dashboard mount of a continuous IHP aluminium tube magnesium struts and moulded-on brackets. The weight reduction is 2.2 kg.

the introduction of shift-by-wire technology, the shift lever has been by a joystick-like lever. This SELECT gearshift system only one sixth as much as the selector lever used in the model. The weight saving is 1.4 kg.

The floor is in the form of a polyurethane plate instead of the wood previously used. The passenger’s plate has been switched to plastic from steel, 1.5 kg in weight.

Seat. New seat with new adjustment motors, but a 4-way lumbar support and head restraint. Weight 11 kg.

Electrics. Thanks to an intelligent load management system, two are no longer necessary; one 95 Ah battery in the is sufficient, supported by a 12 Ah battery for the ECO function. Weight savings: 4 kg.

Every vehicle is given a wiring harness for the interior, and engine compartment. Thanks to tailor-made cable harness, weight in the form of wires are surplus to requirements can be saved to the tune of up to 0.4 kg.

The innovative Frontbass avoids the need for a separate and door loudspeaker. Weight over 4 kg.

Axles. The four-link axle had already undergone weight optimisation for the preceding featuring steering knuckles and links made of aluminium. The two halves now consist entirely of material. The integral support for the front-axle halves, steering and engine is also produced in Total weight savings: 11 kg.

The subframe consists of high-strength with adapted panel It has been optimised in accordance the specific engine line-up for the resulting in a weight reduction of 2.6 kg the SL500.

Suspension, Damping. The semi-active adjustable damping in the is lighter than the standard system, saving 10 kg in weight.

and pedals. Optimised brake eliminates the need for large and heavy brake discs on the axle. Weight savings: 3.8 kg.

wheels. New standard-fit lightweight for the SL500 are around 15 percent than cast wheels. saving: approx. 4 kg

Wheel with a weight-optimised head. saving: approx. ¼ kg.

VISION CONTROL adaptive washing system: Visibility as if by

An astonishing experience: the wiper glides over the badly windscreen of the new SL, without a sign of a water jet, the occupants do not anything yet the windscreen is still The new SL is the first vehicle to be equipped the adaptive MAGIC VISION wiper/washer system developed by It cleans the windscreen without the of water that usually disrupts the driver’s field of in the case of conventional windscreen systems — something is especially unpleasant at night or the sun is low in the sky and at high speeds.

In fact, the cleaning operation in the Mercedes-Benz is still performed with fluid in the conventional manner. The lies in the way the fluid is conducted to the in order to clean it. This is by means of water guides on both sides along the blade — one on the left and one on the — with minute spraying holes. Via these the innovative washer/wiper system supplies washing fluid to the discreetly, precisely where it is just in front of the wiper lip, according to the direction of of the wiper. The holes are distributed the entire length of the wiper being more closely towards the outside of the blade, it sweeps a greater area, closer in, where the area is smaller.

Programs for summer, winter and operation

Mercedes-Benz controls the VISION CONTROL system via three partly autonomous programs — for summer, for and for cabriolet driving. It is the first wipe/wash system anywhere in the to operate in this way. In small quantities of water are to remove a light powdering of In winter the dirt mixed de-icing salt requires a amount of water. The MAGIC CONTROL system works in with the outside temperature, and it automatically adapts the washer quantity to the surrounding conditions.

A interesting feature of the SL Roadster is the function: when the hardtop is the electronic control system the amount of water, apart which it demands the required mainly on the downward stroke of the arm. This way the windscreen can be cleaned during the journey and an open roof, without any of the spraying into the vehicle Another pleasant side is that, since the washer is directed specifically and in a well-metered to the area to be cleaned, one doesn’t anyone else in the surroundings water, either, and it also distribute any spray onto the behind. At the end of the day, a better effect is attained with up to the amount of washer fluid. It has been possible to reduce the of the washer fluid reservoir by 1.7 compared with the preceding This in turn contributes to a in weight and consequently to greater

Winter-proof thanks to the heated

On request the MAGIC VISION wiper blades are completely on the new SL, making Mercedes-Benz the first in the world to offer a fully wiper/washer system. It consists of a fluid container heated coolant waste heat, heating for the entire hose and, as a newly-developed highlight, a heated wiper blade. effectively prevents the formation of on the wiper blades, so typical in To do this each of the spring of the blade is equipped with a foil with an output of 35 per blade. It heats the spoiler and the lip. Snow and ice cannot onto the blade; it remains in winter, too, and always well.

The heating is also as required according to the duration of and the outside temperature. It is only a temperature of minus 20 degrees that the system makes use of the system’s maximum output, 270 Between 5 degrees above and 20 below zero the heating in an energy-saving mode and only the output needed to thaw out the system and keep it free of and ice.

Aerodynamics: Breezy, but bothersome

Open-top motoring be nothing but sheer pleasure: the forests and meadows, hearing the singing, savouring the sound of the feeling the warmth of the sun. And in of this proximity to the natural the occupants in the new SL do not have to relinquish Even at higher speeds are largely unaffected by any strong In this respect, just its predecessor, the new luxury roadster is by no other open-top two-seater.

and foremost it is the rigid aluminium and — one of the brand’s hallmarks sophisticated aerodynamics which excellent comfort during motoring. The designers’ intelligent and efficient work has resulted in aerodynamic properties for the SL in several This means that the earns top marks in no less four important disciplines its segment:

Best cd figure

noise on a par with a saloon

motoring in maximum comfort

anti-soiling measures

Top-class: cd

The new SL shines with a cd figure of (in the SL350). Never before has a in the roadster segment achieved a low cd. At the same time, the cLR value coefficient of lift at the rear which is decisive when it to braking stability, is reduced by This ensures a lower at the rear axle than at the axle — which is for comfortable, safe handling at speeds and/or when is a crosswind.

The fact that not could the cd figure be cut to a record low but it was also possible to reduce the resistance as a whole is even astounding when taking account the fact that the new frontal area is around percent larger than of its predecessor — due in part to its track. The product of the frontal and the cd figure is, however, smaller.

a great deal of precision some of the other factors contribute towards the low cd figure

a complete engine compartment and panelling concept,

a spoiler lip on the top of the boot lid,

a specifically spoiler lip on the tail light,

spoilers in front of the front and wheels, and

redesigned exterior positioned on the beltline and with a base specially optimised for the new SL.

A developed aero wheel is part of the standard specification for the also significantly reduces the resistance. Its rim section is largely which means that the air through the wheel to the exterior the air flowing past at the outside of the than is the case with a wheel. Together with which have been tuned to this end, the wheel cuts the frontal — which is also a factor in determining the wind — by 0.01 square This pays off in the form of a in consumption, which results in one per kilometre fewer carbon emissions.

In order to minimise resistance even further, the version of the new SL also employs an radiator shutter. This of a large number of louvres and is between the radiator and the radiator An actuator fixed to the engine’s module can be turned to close or the flow path of the cooling In this way the flow of air through the and through the engine compartment can be as necessary. This means if the engine has low-level cooling the wind resistance falls, as do the consumption and emissions.

Top-class: noise on a par with that in a

Where wind noise is the predecessor of the new SL was already the benchmark in its But its successor surpasses this level. It is even possible to a conversation, listen to the radio and a telephone call at high This is thanks in part to the new for the exterior mirror. Its shape optimum flow; both the inflow is straight and in the case of it causes only low wind

The windscreen fitted with foil also contributes the exemplarily low interior noise, a low component weight with acoustic properties. Low-frequency which can arise through in the vehicle’s bodyshell can to a large be prevented by the new SL’s aluminium through design measures were taken into and tested at an early stage.

maintaining a draught-free interior

at speeds of around 200 km/h the new SL extraordinarily high comfort open-top motoring, setting new here. When the vario-roof is and the side windows are lowered, a breeze can be felt during hot Even putting the side up tangibly reduces it. The occupants in the new SL a comfortable and virtually draught-free as soon as they use a draught-stop. A manually operated folding-frame comes as part of the standard Covered with a finely synthetic textile fabric, draught-stop is mounted behind the and folded up by hand. It covers the area behind the seat as far as the upper edge of the head It can be taken off and stowed in the boot as

A highlight comes in the form of a new operated draught-stop which is as an optional extra. This new can also be extended and retracted by the or passenger during the journey, via a in the centre console. If the switch is a trapezoidal frame is unfolded and when it reaches its final a finely meshed textile covers it, thus keeping the behind the occupants virtually of draughts. Once it has been the frame disappears completely in the compartment trim cover.

The neck-level heating system is also available as an optional It emits preheated air from an in the head restraint, and this air then wraps itself the neck area of the occupants an invisible scarf, therefore making it possible to have the open when the temperature is without any serious inconvenience.

anti-soiling measures

Clean mirrors and side windows are factors where safety is yet all too often drivers cannot them for granted. In this the new SL profits from the detailed carried out by the aerodynamics engineers and can to a extent ensure clear for drivers — even it is raining. This is achieved through a precisely tuned of anti-soiling measures. The A-pillar with a new shape features an and aeroacoustically tuned front and a water guide channel on the top prevent water from from the windscreen to the side The new exterior mirror has also optimised for journeys during weather. Water guide and additional drip edges been integrated into its and to a large extent they water away from the glass, and shift the break-away of the droplets to the outside. As a consequence of the measures the side windows only slightly.

Engine and system: The power and the economy

power reserves plus fuel consumption — formula describes the fundamental of the new SL models. They owe this in to the two V6 and V8 units from the new generation of engines from Mercedes-Benz. As is the case with the S-Class and the they now also enable the SL to previously unattained marks for in its segment. The V8 in the new SL500 has at its disposal cubic centimetres of displacement which it achieves 320 kW (435 hp) so in spite of having around 0.8 less displacement that’s 12 percent more than its (285 kW/388 hp). The meanwhile, falls by up to 22 percent, the torque increasing at the same from 530 Nm to 700 Nm — an increase of 32 The V6 engine for the SL350 has the same as its predecessor — 3499 centimetres — from it now achieves 225 kW (306 hp). this means that its is 7 kW less than the engine in its (232 kW/315 hp), as the simultaneously climbs from 360 Nm to the figure of 370 Nm, there is no perceptible of power — on the contrary, in when accelerating, the new SL350 proves superior. Plus the new V6 with its outstanding consumption It is content with 6.8 litres 100 kilometres, making it almost 30 more economical than its (9.7 l/100 km).

to the economy of both engines, it has possible to decrease the volume of the tank from 80 litres to 65 Nevertheless a greater range is than was the case with the

Of a torquey disposition when

The acceleration times from 0 to 100 go to prove that economy nothing to dampen torquey Despite a nominal reduction of 7 kW, the covers this sprint in 5.9 which is three tenths than its predecessor. From a the SL500 races to the 100 km/h in 4.6 seconds, making it eight faster than the previous

Both engines are exemplary it comes to in-gear acceleration, Proof positive can be found in from 80 to 120 km/h in 4th gear, for good figures facilitate and safe overtaking on rural 5.5 seconds for the SL350 and 3.2 seconds for the make the new SL’s excellent in this discipline plain for all to

The new BlueDIRECT engines in the SL with six and cylinders form a unique of effortlessly superior power comfort and consuption, comments Dr Thomas Weber, responsible for research and development at Mercedes-Benz on the Board of Management of Daimler AG. impress in the new SL, delivering refinement of the calibre and exemplary environmental

The V8 is in a new league of its own

The new V8 was systematically enhanced on the of the very successful predecessor. engineers primarily achieved a output for a lower displacement by one turbocharger for each bank of The turbochargers were configured to high torque even at low speeds — compared to the engine, the result is an increase of than 40 percent at 2000 A superb 700 Nm are available between and 4750 rpm.

The V6 impresses its low fuel consumption and high

The new six-cylinder is a naturally aspirated The most striking change the new V6 unit and its predecessor is a reduction in the between the cylinder banks 90 degrees to 60 degrees. This the balancer shaft counteracting vibrations to be omitted, and as a result the registers an outstanding level of

Innovative technology makes V6 and V8 fit for the future

Both the new V6 and the new V8 from are derived from their They have aluminium pistons and cylinder heads. The connecting rods and valves are of forged steel. Practically all the were, however, newly or revised with the aim of achieving fuel economy, more and more refinement.

The technology in the new engine generation includes a of new developments that are unique in combination:

In combination with ignition, a further developed, direct fuel injection with spray-guided combustion and injectors offers further for fuel savings — in the V8 by of an improved, homogeneous combustion and in the V6 by a new, stratified combustion with a considerably extended map and fuel-efficient lean-burn technology.

In conjunction with the ECO start/stop shift point adjustment and friction-reducing measures, improvements in fuel consumption of up to 30 percent are

Power consumption by ancillary has been reduced. These an optimised water pump 2nd-generation thermal management, a oil pump, a volume-controlled high-pressure pump and an intelligent generator system.

ECO start/stop function direct-start

The standard-specification ECO start/stop operates with starter-supported This means that the engine is switched off, the of the crankshaft is registered by a new crankshaft so that the engine control knows the positions of the individual On restarting, it can then select the that is in the most suitable for first ignition. After the has briefly turned over the reliable injection, ignition and is immediately possible there.

An demand-controlled electric transmission oil supplies the clutches of the automatic with oil pressure prior to so as to enable a swift resumption of the after direct starting of the engine via the ECO start/stop function. The motor (starter) has also thorough modification: it is now designed to be durable, ensuring that it last a car’s lifetime in urban driving involving auto-starting. In addition, the on-board system is supported by a second As is the case with the starter (95 Ah), the auxiliary battery (12 Ah) features maintenance-free AGM technology = absorbed glass mat).

alternator management

Its intelligent management also contributes to the roadster’s sensitive treatment of When the battery is charged to than 80 percent, the alternator is to take load off the engine. The required in this operating is supplied by the battery. If the driver their foot from the pedal or applies the brakes, energy is recovered and fed to the battery.

transmission for less consumption and fun at the wheel

All Mercedes-Benz SL-Class come with the 7G-TRONIC automatic transmission as standard. Now in its generation, the multi-ratio automatic was developed by Mercedes-Benz and has been since 1960. The new version has again been thoroughly to optimise consumption and comfort with its predecessor. The new generation of the converter provides an improved response and reduced noise and levels thanks to a new hydraulic as well as enhanced dampers and an torque converter housing. The wheel-slip reduction of the torque housing, combined with

mechanical damper de-coupling, to reduce consumption significantly;

in the gearshift program in ECO mode has changed in favour of lower rpm at cruising speeds;

friction-optimised and seals plus a new automatic oil (FE-ATF) with reduced in conjunction with an optimised package.

This results in driving enjoyment than was the with the predecessor transmission and also improved smoothness, not to an average of seven percent consumption (in the NEDC).

What’s the increased durability of the new oil also with it new oil-change intervals 50,000 (old) to 125,000 (new).

DIRECT SELECT with designer chic and allure

Mercedes-Benz is equipping the new SL the newly developed DIRECT gearshift in the centre console the first vehicle with an transmission to receive this In so doing, the premium brand is a completely new generation of central for vehicles featuring shift-by-wire transmission technology. Its small lever, reminiscent of a high-calibre has a driver-oriented position, being on the centre console. Its striking not only underlines the sporty of the roadster; it also emphasises the quality of the SL with its exquisite and feel, superb ergonomics and look.

In addition to an Eco program, the PLUS in the new SL also offers a automatic program. Over and this, the driver can also a manual shift program they operate via the paddles on the wheel — which come as part of the standard

The two automatic programs automatically on a continuous basis in line the driver’s behaviour. By way of example, if step on the accelerator pedal dynamically than before, the points automatically move more sportiness. In the ECO mode, the program is configured differently for engine speeds during thus saving fuel.

In the oriented automatic program, the is available more spontaneously and it faster. The double-declutching function and downshifts have been enhanced. During heavy the transmission shifts down earlier, so higher engine make the acceleration which easier. The double-declutching function, in the engine speed is actively with an abrupt acceleration, faster and more comfortable The concomitant acoustic response a sporty driving style and the unique roadster feel.

In the transmission mode controlled shift paddles on the steering the engine responds to the throttle a steeper characteristic pedal Selecting the gear via the steering-wheel buttons facilitates minimal times and emphasises the sporty declutching. In manual mode, the indicator in the instrument cluster to a separate section of the colour where it shows the seven gears plus the gear selected.

Chassis and suspension: contact with the road

when accelerating, effortlessly at every speed, zappy on stretches — the new SL is a shining displaying perfect manners on all the roads and in all driving situations. more, it also pampers all the with any amount of fun at the wheel. For emotive experiences SL drivers can the potent engines — and all the sporty, agile tuning of the — which is nevertheless comfortable, being offered in the of two different systems for the SL:

The Mercedes-Benz features semi-active adjustable as standard. The optional active system ABC (Active Body is offered as an alternative.

The spring which come as part of the equipment combine a steel with a continuously adjustable Its damping properties can be varied via an controlled valve.

Mercedes-Benz 2013

Continuous of the damping in accordance with the driving situation is taken of fully automatically by control which record the driving in question via sensors. The control uses the sensor data to the necessary damping forces for comfort and handling. On this it steplessly regulates the damping at every wheel within a damping characteristic so that mass vibrations such as rolling and pitching are minimised on roads. As a result, the new SL gives its a smooth ride even on roads, without relinquishing any dynamics.

The semi-active adjustable also rapidly counteracts mass vibrations caused by the by adjusting the damping characteristics. By way of the dynamic anti-roll and anti-pitch compensates for pitch ensuing braking and accelerating, and quickly and stems rolling motion is initiated above all by cornering or the steering wheel during a evasive manoeuvre. Torsion at the front and rear axle to reduce wide roll when cornering, and positively the understeer/oversteer characteristics.

Setting the characteristics of the suspension is still to the driver, however, using a that enables them to from a broad spectrum from comfortable to sporty characteristics. At the touch of a button can therefore have a chassis and set-up available which more emphasis on comfort, for whilst if they choose the setting, they are opting for a experience with a very level of dynamic response.

suspension in the AMG Sports package

A of this suspension is offered in the AMG package. This sports lowers the roadster by ten millimetres, the strut and torsion bars are to be ten percent more rigid and the of the adjustable damping is selected in a way that the sprung mass is dampened more strongly all measures which underline the sporty character.

ABC suspension for levels of comfort

As an option the new SL is available with the unique suspension system ABC (Active Control) as an alternative. It has been improved for the new SL by the Mercedes-Benz chassis and specialists. This system’s effective control elements are struts with a hydraulic cylinder arranged in line the steel spring. When cylinder retracts and extends, it adjusts the length of the spring and the spring force in the spring This eliminates the need for bars at the front and rear

With this technology an controlled electronic system adjusts the suspension to suit the situation and the road condition any perceptible delay. This that the active suspension ABC can raise comfort to a high whilst simultaneously improving the driving dynamics. This is as it almost completely compensates the body’s rolling and pitching when accelerating, braking and In addition to this, at the touch of a it offers a unique, further spread of suspension settings sports and comfort.

As the vibrations by irregularities in the road surface are reduced, the occupants in the SL experience a with perfect absorption on poor roads. Above all it is sprung mass vibrations which are extremely minimal.

mass vibrations which through the driver’s influence are almost entirely ironed out this is the case, for instance, the body rolls during or when there is pitching braking and accelerating. The occupants a vehicle which drives as if on but without having to pay for this the usual reduction in ride which is typical of sports

As the ABC system modifies the roll distribution depending on the driving the driver experiences handling changes with the driving It varies from motoring where one can afford it in driving terms to directional stability it is most needed. In other on winding rural roads the moves with nimble and on motorway stretches it stays on track and does not worry the with any nervous reactions.

The ABC is also fitted with a all-round level control thus ensuring a constant level irrespective of the load. the engine is running, the driver can the level of the vehicle at the touch of a both when the vehicle is at a and during the journey. Thanks to a new in the SL, if the level is raised by 50 millimetres in way, the ground clearance for roads or ramps is increased. In the SL fitted with ABC is automatically by up to 13 millimetres at high speeds, lowering the centre of gravity and resistance — and therefore the fuel consumption.

More less unsprung weight

The and wheel suspension are the same in the of both suspension variants. In of sporty, agile and handling can be safely kept under the new Mercedes-Benz SL-Class has a considerably track than the predecessor axle plus 38 mm, rear plus 63 mm).

At the front the tried-and-trusted principle of the 4-link suspension has been adopted the previous model series. It superb results where dynamism, agility plus and passive safety are concerned. importantly they are characterised by two links (a torque strut and a link), which are included in of a lower wishbone. In conjunction the ABC suspension no torsion bar is necessary.

In to optimise the front axle further in terms of weight, in the new SL the knuckle and the spring link are made of aluminium. The lower axle elements, the steering and the engine mounts are linked an aluminium assembly carrier is directly bolted to the body.

A construction was also systematically at the rear axle, too. In to reduce the unsprung masses, all the suspension parts are made of as is the subframe with load-matched thicknesses. The weight-reduced rear carrier consists of high-strength

But the focus was not just on saving when developing the rear the engineers have also the kinematics and elastokinematics, with the of achieving more agility. results of the new configuration are lower which considerably increases An additional support linking the subframe bearing to the bodywork has a positive effect on the new SL’s comfort. It increases the introduction — a parameter whose include excellent road characteristics where NVH (noise, harshness) qualities are concerned. to these constructive measures to materials technology, the new luxury offers a chassis with comfort coupled with driving dynamics.

Like its the new SL with adjustable damping has an anti-roll bar, which is directly at the rear axle and together with the subframe, and to reduce the connection points the bodyshell.

The chassis has a virtually configuration, pleasing sporty In particular in the range from 60 to 130 it reacts with enormous and therefore facilitates a great of fun at the wheel on rural roads. In so the SL allows lateral accelerations are impressive even for a sports Two different programs can be selected for the The control interventions from the sportily tuned variant side-slip angles during cornering — offering drivers plenty of motoring At the same time it can be driven easily and safely at higher

Electric Direct-Steer system for driving dynamics

The broad of suspension settings is supported by a new Direct-Steer system with steering power assistance and a steering ratio that according to the steering angle. The is very indirect when the is centred, which ensures straight-line stability and therefore a level of safety. In contrast to variable steering systems, the of the Direct-Steer system decreases after a steering angle of 5 becoming extremely direct a steering angle of just 100 Only relatively small movements are then needed to course corrections.

In contrast to the the Direct-Steer system optimises the course. This enables the new SL to with yet more agility, cornering even more fun as a At the same time, through the new course the maximum steering required when parking or is reduced by about 15 percent. means that only 2.2 of the steering wheel from to limit are now necessary.

This has the effect in practice: even at driving speeds, the driver to perform less pronounced movements, making changes in possible more rapidly and less effort. The effect of the system is even more on winding country roads, only small steering are sufficient to steer the vehicle. on tighter bends, the driver’s hardly need to change grip on the steering wheel. sequences of bends can be mastered and precisely, and with enormous

Despite its remarkable effect, the key of the Direct-Steer system is a simple rack. Its secret lies in the cut into it. In the mid-area these are wave-shaped, with varying profiles. To both sides the are spaced at varying distances The change in steering ratio is produced by purely mechanical With this ingenious Mercedes engineers have able to dispense with the actuators and complex sensor used by other variable systems. The advantages of the Direct-Steer therefore include very low to faults and low weight. Moreover, the always responds predictably and in the way at each steering angle, other variable steering sometimes require rapid by the driver in rapidly changing

Instead of hydraulically, as is the case the familiar speed-sensitive steering Mercedes-Benz, the Direct-Steer system in the SL the steering force electrically. is taken care of by an electric — positioned axially to the toothed rack — transfers its power to the ball as a rotary movement via a toothed The electric motor, drive control unit and sensor are integrated in a compact unit.

The unit evaluates a large of input variables in order to the steering torque optimally in with the situation in question. A sensor determines the necessary required at the steering-gear input In so doing the electronics take account, for example, different axle loads. Due to the different weights, the characteristic maps for and eight-cylinder models are proof of the engineering artistry that behind the system.

Further of the electric steering:

More response: the electronics support the return, meaning that hardly need to steer in to return to the centre position.

consumption: as output is only up when the driver is actually the consumption falls by up to 0.3 l/100 km with the hydraulic Direct-Steer

Active parking: with the Direct-Steer system the Automatic Control (APC) system can be in the Mercedes-Benz SL-Class for the first

Assistance for critical road conditions

A further assistance has been realised in the new SL thanks to the steering power assistance the Steer Assist system: it can stabilisation of the vehicle if the vehicle on a road surface with friction (µ-split) on the left and making it pull to one side. can find themselves confronted this situation, for example, on a surface which is covered ice on one side. When braking, the then turns in the direction of the friction — referred to by as a yaw impulse.

In this case the assistance system indicates to the via the steering wheel that should countersteer in the correct in order to compensate for the yaw impulse by the difference in friction — the vehicle has stabilised again. In to do this the control unit the difference between the ABS pressures on the and left, giving an indication of road surface friction and it also includes the ESP® which register oversteer in sort of situation.

By way of indication, the steering power assistance a steering torque which the driver’s own reaction like a This steering torque, causes the driver to steer through a light impulse, is perceptible, and most of the time it is not noticed at all. Nevertheless the function is effective. However the assistance system merely an indication of the direction in which the should steer in order to the vehicle; it does not overrule the

Brakes for sporty driving

The new SL has adopted the proven braking with a dual-circuit brake and the of the two braking circuits between the and rear axle from the model. At the front all the variants are with newly developed fixed-calibre brakes with an monobloc design and perforated discs. 1-piston combined brake callipers are fitted at the

In order to be able to provide the output from the braking the heat arising at the brakes be removed as quickly as possible. is why special attention was given to favourable and highly effective cooling. On the basis of different tunnel and road tests, the engineers developed a system several components for targeted air in the front axle area. A air channel has been integrated the front engine compartment in order to guide the air over the wheel spoiler in a targeted and steer it onto a guide The guide blade fixed to the suspension link diverts the air from the brake air channel the brake discs to the exterior. with a front matched spoiler, this has achieved cooling of the brakes. The newly brake cover plates of steel at the front axle and at the rear axle.

Electric brake with emergency function

As a new feature in the SL, the electrically parking brake helps in the of a generous interior. Its switch is in the dashboard, under the rotary switch. Pressing this the electric parking brake, and releases it. It is also released as soon as the engine is running, the is in the D or R position, the driver has a fastened belt and the accelerator is operated.

normal circumstances, irrespective of the of operating, the electric parking only closes the responsible floating brake calliper at the axle fully and for a sustained when the vehicle is at a standstill or at below 4 km/h. Provision has been made for an emergency function: if the driver pressed the parking brake at a speed than 4 km/h, the SL brakes to a stop with the aid of the service In this case, the emergency function is taken care of by the unit of the ESP®, with the lights also lighting up.

The braking is interrupted as soon as the element is no longer kept

Torque Vectoring Brakes: helps with the steering

The new SL the Torque Vectoring Brakes as part of its standard specification. ensures an additional safety at the physical limits, makes the even more agile and enhances its sportiness. The system this with targeted, braking intervention by the Electronic Program ESP® at the inside wheel when cornering. If detects a tendency to understeer, the Vectoring Brakes generate a turning or yawing moment the vehicle’s vertical axis fractions of a second. Thanks to the torque distribution that the SL turns into the bend precise control without any of handling dynamics. The advantage of solution over complex components such as an active rear axle, additional clutches or an active differential is the Torque Vectoring Brakes can be without an increase in vehicle and therefore no disadvantages in terms of consumption.

Wheels and tyres a broad base for the SL

As part of its specification the SL350 is fitted 17-inch light-alloy wheels 255/45 R17 tyres — ranging up to 19-inch wheels are for selection on request. The SL500 is as standard with 18-inch with mixed-size tyres J x 18 ET 35.5 with 255/40 R 18 at the front, and 9.5 J x 18 ET 47.5 wheels 285/35 R 18 tyres at the rear).

Top technology for the greatest possible

Mercedes-Benz drivers are safer drivers of other brands out on the roads. This is the result of an carried out by Mercedes-Benz accident on the basis of official, anonymised data checks by Germany’s Statistical Office. It underlines the of the comprehensive Mercedes-Benz safety This involves the experts not themselves with achieving targets, but working intensively on a level of safety which far the standards stipulated by the world’s An important measure of their is not the laboratory or crash test but actual accident incidents. The of the work carried out by the safety at Mercedes-Benz is known as Real Safety, a concept which is on research into thousands of Using this irrefutable for their holistic safety they have developed or most of the assistance systems today effectively support and have been adopted by of the company’s competitors.

The new Mercedes-Benz SL new standards for roadsters and can confidently be to as the safest roadster in the world, Professor Dr Rodolfo Schöneburg, of Passive Safety at Mercedes-Benz. The aluminium bodyshell offers preconditions for a stable occupant as well as for precisely defined zones. This provides protection for the occupants in the event of an But we do not just think about inside the vehicle — we consider the other road for instance through effective protection measures or assistance which also protect motorists.

During the development for the new Mercedes-Benz SL-Class the requirements of NCAP and other rating were taken into The basis for this is a new light-alloy which is formed mainly by sections and cast nodes of aluminium. It facilitates a light yet cell compound for a highly occupant cell. In conjunction this the tail end and front are in such a way that in the event of an they can absorb high through deformation, thus reducing the strain on the occupants in a in accordance with the principle of the zone. The crash boxes the bumper trim and an exchangeable module ensure that the sustained during a front at up to 15 km/h can be limited.

Protection in the of an overturn

The occupants in the new SL enjoy protection in the case of a potential too. A-pillars in a steel/aluminium mix and two roll-over bars can protect the compartment. Normally the two roll-over are completely recessed, so they do not the look of the elegant, luxury flowing lines. They are in two cartridges fixed to the bodyshell in the behind the seat backrests. If the of crash sensors detects a overturn, the airbag control emits a signal and the deployment is activated. Two preloaded pressure per cartridge see to it that the roll-over shoots to the support position in of a second.

Headbag and crash-responsive restraints

The restraint systems two-stage driver and front airbags have been A headbag provides generous protection for the head impact An additional thorax airbag in the backrest can protect the upper in the event of a side impact. The belts, with inertia-reel and belt force limiters, to highlight the high safety of Mercedes-Benz.

Another new feature its way into the standard equipment of the SL in the form of the NECK-PRO crash-responsive restraints, developed by Mercedes-Benz. can support the driver’s and passenger’s in the event of a rear impact and the risk of whiplash. Also as standard is automatic child recognition. The ISOFIX system is as an optional extra.

Protection for

The new Mercedes-Benz SL-Class Roadster the latest technology in the area of protection, too. A sensor is able to register an impact a pedestrian and can ensure that the is immediately raised by 85 mm in the rear This creates additional between the bonnet and the components in the compartment. This in turn in comparatively lower acceleration for the head of a pedestrian during the thus reducing the overall of injury.

The deformation properties of the have also been designed to meet the requirements pedestrian protection. It consists of with a homogenous reinforcement on the of the bonnet and can therefore further the loads in case of an accident. The soft nose also a large impact area, the foam density and geometry in the bumper have been for reduced loads during leg with the pedestrian.

Only from Mercedes-Benz — the occupant protection system

An additional safety highlight is the anticipatory occupant protection PRE-SAFE®, a system developed by and unique throughout the world. If it an acute risk of an accident, it activates precautionary protective for the vehicle occupants, also the reversible, electromotive belt function which ensures the occupants are better secured so the seat belts and airbags are to perform their protective to the full during an impact. developed PRE-SAFE® on the basis of into actual accidents, and is the manufacturer in the world to offer a system.

Following an accident optimally prepared

Mercedes-Benz’s safety concept involves the phase after an accident. is why the new SL has numerous post-crash measures on board which facilitate assistance should the worst to the worst: depending on the type of and the impact severity, the doors can be unlocked, the interior lighting and the side windows opened by 50 to provide better ventilation in the In addition to this, the steering can be slid upwards. The concept is by the Guidelines for Rescue Services and the cards which can be downloaded the internet free of charge and can serve as a valuable support for brigades.

ATTENTION ASSIST and BRAKE as standard

The new SL also a unique combination of driver systems which help to accidents. These include the detection system ATTENTION for example. Thanks to this the roadster develops a precise for the level of attentiveness of the driver and can an early warning of overtiredness.

making up part of the standard specification is the ADAPTIVE BRAKE. It ABS, the acceleration skid system ASR and also active yaw (GMR). In addition, it features the functions:

it supports the driver moving off uphill, by preventing the from unintentionally rolling

it also keeps the vehicle without having to keep the applied continuously — for when waiting at traffic

as soon as the driver abruptly off the accelerator, it brings the brake into light contact the brake discs as a precautionary so that the necessary braking can be attained quicker in the possible of emergency braking;

in wet conditions it light brake contact, the driver even noticing, to dry the discs.

The ADAPTIVE BRAKE in conjunction with the equally brake lights. In emergency situations, it warns vehicles with rapidly flashing lights.

PRE-SAFE® Brake: partial and emergency braking in to a serious risk of a rear-end

Available as optional extras are the PLUS proximity control as as the PRE-SAFE® Brake, already and tested in other Mercedes-Benz The two systems together and can initiate braking automatically on detecting an risk of an accident.

In normal conditions, the radar-based DISTRONIC proximity control adjusts the to the vehicle in front automatically. If it can apply the brakes, even the SL Roadster to a stop, and accelerate it This takes some of the off the driver, particularly in bumper-to-bumper conditions. If the distance starts to too quickly, the system gives the visual and acoustic warnings, prompting the driver to take at which point they are supported by Brake Assist (BAS PLUS).

If the systems the acute danger of a rear-end and the driver fails to respond to and acoustic warnings, the electronics the PRE-SAFE® Brake in preparation for braking. This happens in two

Around 1.6 seconds before the impact point, the car initiates partial braking with 40 percent (approx. four of the maximum braking power, the driver an additional, haptic of the impending impact and as a precaution the reversible PRE-SAFE® occupant systems.

If the driver still to react, the PRE-SAFE® Brake the maximum braking power 0.6 seconds before the now unavoidable — this emergency can greatly reduce the severity of the The system therefore acts an electronic crumple zone, the car occupants even greater

The PRE-SAFE® Brake is active at of between 30 and 200 km/h when vehicles are detected in front of the The system also reacts if the car a stationary queue of traffic, the car’s speed is below 70

The functionality of DISTRONIC PLUS has enhanced even further. It now earlier to vehicles which cut in, and the car quicker when changing itself and where the overtaking is clear. Thanks to the incorporation of from digital maps mode), automatic control has been further refined.

Light System — vision at all times

The Intelligent System also comes as of the standard specification. It offers controllable headlamps with different light functions are adapted to suit driving and situations commonly encountered. switch themselves on depending on the driving situation, offering the a considerably greater field of

The country mode distributes the from the low-beam headlamps in a way that the left edge of the is illuminated more brightly and a larger area.

The motorway switches on from a speed of 90 per hour and enlarges the field of by as much 60 percent.

The cornering function is automatically activated the main headlamps are on and if the driver the indicator or turns the steering at a speed below 40 km/h. The headlamps and fog lamps then the side area ahead of the to a range of around 30 metres at an of up to 65 degrees.

The active light improves illumination of the road on by up to 90 percent.

The enhanced fog light works by pivoting the left-hand headlamp outwards by several and lowering its beam. This brighter illumination of the inner of the road.

Adaptive Highbeam is also on board as part of the specification: when vehicles are ahead of or approaching the vehicle, system automatically dips the and adjusts the range of the headlamps to the distance.

The assistance systems into action

Those to can choose to extend the potpourri of systems in the new SL even further. provide extra doses of safety and comfort. As an option can equip the roadster with the helpful features:

Speed Assist: it is able to detect limit signs using a on the inside of the windscreen and indicate the detected speed limit on a in the instrument cluster and in COMAND. in conjunction with COMAND

Active Blind Spot it warns the driver when lanes if a risk of collision is due to another vehicle in the neighbouring being in the blind spot of the mirror. If the driver ignores the and nevertheless initiates the lane-changing the Active Blind Spot intervenes. A brake actuation the collision course. (Part of the assistance package with PLUS including the PRE-SAFE® and Active Lane Keeping

Active Lane Keeping this system kicks action if the Mercedes-Benz vehicle drifts over a solid to the right or left of a lane. In a case, a warning sign in the cluster and vibrations in the steering warn the driver. If the driver not heed the warning in the case of a line, Active Lane Assist can use the ESP® to brake the wheels and thereby prevent the from crossing the solid (Also part of the driver package — please see

Hands off the steering wheel parking

Active Parking will answer the prayers of drivers in the chronically congested areas of Europe: the SL can not only parking spaces, but also with the parking itself. is made possible thanks to a of the new electromechanical Direct-Steer system see the chapter on the chassis and suspension) and a of ultrasonic sensors. This system features the following

Measurement of potential parking lengthwise to the direction of travel even in slightly curved — up to a drive-by speed of 30 The parking spaces must be at one metre longer than the

Calculation of a suitable parking in order to park the vehicle to the kerb.

Automatic steering in to perform this parking

Automatic steering in order to the parking space. This is possible if the parking space was using Active Parking

Two ultrasonic sensors take of the search for suitable parking lengthwise in the direction of travel. are integrated in the front bumper, on the and right. If the speed falls 30 km/h, a P symbol in the instrument signals to the driver that the search for a parking place has started automatically. If the system has a potential parking space, an indicates this alongside the P As standard, the arrow shows spaces on the passenger side. If the on the driver’s side has been it shows potential parking on the driver’s side.

It is up to the driver to whether the free area by the system is indeed actually a space. Even during the procedure the responsibility remains the driver. They activate the and brake pedals during The Active Parking Assist care of the steering and for orientation it the two front ultrasonic sensors as as four further sensors in the bumper. During parking, the must not move faster 10 km/h. The automatic parking is configured for a maximum of five (backwards-forwards-backwards-forwards-backwards). Once the vehicle is correctly in the automatically selected space, the system aligns the

The Active Parking Assist itself off as soon as the driver in the automatic turning of the steering if the system is turned off via the PTS button sensor), both if the driver’s belt buckle or the driver’s is open, or if there is a system Nevertheless the familiar PARKTRONIC remains available without any

Infotainment: The fully integral of tomorrow

As a rule, those with a sensitive sense of cannot expect much enjoyment in a roadster. Even car radios and CD players are disappointing these arduous acoustic Instead, in open-top cars, the flies away with the it frays and breaks up in all directions its acoustic base — generally have to be satisfied a woolly sound carpet, or the roof. Open-air pleasure and enjoyment could hardly be in a roadster. A great part of the for this lies with the of the bass loudspeakers in the doors or a seat. Mercedes-Benz now presents a to this conflict: the unique system, which at last the conditions for a concert hall in a roadster too. In the new SL, the Frontbass is celebrating its world premiere.

bass sound from the

The principle sounds simple: of being placed in the doors in the way, in the new SL generation the bass are installed in the footwell in front of the and passenger. This is not possible traditional vehicle shell but the two front longitudinal members in the aluminium skeleton of the new Mercedes-Benz provide the resonance space for this arrangement. The loudspeakers are directly in two openings in the firewall on side of the footwell. Cavities in the members behind the speakers act as chambers. The outstanding inherent of these structural components in ultra-precise low notes with little distortion, right up to high signal levels. In words, the new SL features clear, bass sounds with a dynamic range as part of its equipment.

The position of these two closed woofers in the footwell the creation of ideal acoustic because the firewall, the vehicle and the underside of the dashboard form a of funnel that focuses and the sound — a better performance is the result. The acoustic improves significantly. The formula energy plus lots of volume’ saves energy on top of it This way, the Frontbass also contributes towards a CO2

Precise, brilliant sound

the new Frontbass system, Mercedes-Benz is not revolutionising in-car bass reproduction — and in particular an open-top roadster — it is creating the conditions for exceptional enjoyment. Since the bass now do not need to be installed in the doors, the acoustic vibrations typical of configuration no longer occur. In to this, the sound experts placed the mid-range and high-tone in the doors, the dashboard and in the vehicle optimally close to the beltline and almost at the same height as the SL ears. This way they a precise, brilliant sound The experts speak of an exact reproduction with precise representation and an equally precise graduation.

Even the standard Frontbass system creates a encircling sound feel and an sound experience, independently of the vehicle roof is open or As Norbert Niemczyk, responsible for the new system at Mercedes-Benz, explains: Our was not mere sound volume although in this respect, the system performs amazingly but a clear sound instead, one never becomes mushy. We achieved this. All those who the sound with the Frontbass for the first time got out of the car with a big on their face — we call that the Frontbass

Friendly to the surroundings: focused

Acoustic enjoyment of the highest is part of the programme in the new Mercedes SL with a closed and with an top. As the Frontbass system the sound, the powerful sound is on the vehicle occupants — the are significantly less disturbed is the case with conventional systems. Apart from the amplifier automatically controls the in a different manner depending on the passenger compartment is closed or according to the acoustic conditions, in to create the best possible

Frontbass is always on board

The concept is the standard basis in version of the new Mercedes-Benz SL. In the entry-level it is coupled with an amplifier is integrated in the COMAND head with an output of 4×25 two Frontbass loudspeakers with a of 217 mm, two two-way systems for high and tones in the doors and two more speakers in the rear.

The optionally Harman Kardon® Logic surround sound system in with the Frontbass concept a further enhancement and a musical of concert hall quality. The of the matter is a Class D amplifier a total output of 600 W and a digital processor (DSP) for ten audio The two Frontbass loudspeakers and six two-way provide an even more and better defined sound quality.

Finally, the ultimate in pleasure for the eyes and ears courtesy of the high-end BangOlufsen AMG sound system, also as an optional extra. The Class D ICE amplifier and the Class D DSP amplifier a total output of 900 watts control the twelve high-end via separate channels, thus the hallmark BO crystal-clear sound Via the BO-specific True Image various sound settings as the true-to-life studio-like reproduction in mode or a space-optimised reproduction in mode can be selected — and the fields can be precisely adjusted to the being used. In addition to the automatic volume regulation Vehicle Noise Compensation adjusts in accordance with the and the exterior and interior noises with a microphone, facilitating audiophile high-end sound at all irrespective of external influencing such as noises caused by the or the airflow.

High-end music with the DVD Mercedes-Benz Signature

So that SL drivers can fully and enjoy the Surround Sound and the Front Bass system, has edited an exclusive, limited DVD with the title Mercedes-Benz Sound. The name stands for the signature sound of the musical It comprises 15 well-known pop/rock and 10 masterworks of classical music, and fine-tuned to the exceptional acoustic of the roadster by Grammy-winning experts at one of the sound studios in the world. Its crystal-clear sound provides a experience of the highest level. The DVD Signature Sound can be found in new SL Roadster that has been with a Surround Sound

Bodyshell tuned to Frontbass

In to realise the Frontbass concept, the specialists worked in close with the bodyshell designers from the very first stage. A small welcome effect is that since the concept made the loudspeakers in the superfluous, the designers were to use the space made free in the for additional stowage compartments.

Mercedes-Benz 2013
Mercedes-Benz 2013

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