OFFICIAL Official 2012 MercedesBenz BClass | Page 8 | German Car Forum

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2012 Mercedes is low-drag champion

Next-generation B-class boasts drag as low as 0.24.

By Andrew Noakes

Mercedes-Benz says the 2012 due for launch at the Frankfurt show in will lead its class for efficiency. Some models boast a drag coefficient of 0.24 — which suggests is nothing short of for a vehicle with a station rear end.

A whole of measures were necessary in to attain the excellent drag explains Dr Teddy Woll, head of aerodynamics at Daimler AG. from an aerodynamically efficient design, these include optimisation measures on points of such as the air flow around the wheels, the underbody design and the of cooling air.

The aerodynamics of the 2012 B-class optimised using complex calculations and flow simulations required more than CPU hours. Models and prototypes around 1100 hours in the tunnel.

Key aerodynamic features of the new car

— aerodynamically efficient mirrors with braces

— low body shoulder at the and optimised A-pillar geometry

sealed front apron, special seals fitted on the

— large roof at the rear defines flow

— serrated wheel spoilers, optimised arches and

— sophisticated aerodynamic

Serrated wheel spoilers and a of detail aero features

serrated spoilers at the front and wheel arches (above) with slots in the arches and hub caps to reduce drag the wheel arches. Daimler has a pending on the serrated spoilers.

The main floor panel extensive cladding up to the rear arch, followed by additional of the rear axle. The rear has also undergone aerodynamic

An adjustable radiator shutter even on the basic petrol-engine and enables infinite adjustment of the air through the radiator and the engine The shutter closes when air is not needed, reducing drag.

These measures combine to the B-class a drag coefficient of

Eco Technology package reduces Cd to

An Eco Technology package will be available which incorporates drag reduction features

— ride height

— rear window sealed

— aerodynamic added to rear axle

With this package, the Cd drops to just 0.24.


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