Basic Howtochange a thermostat (C270CDi W203) MercedesBenz Owners’…

29 Янв 2015 | Author: | No comments yet »
Mb b170 kühlerthermostat

Thermostat Housing and Gasket.

‘O’ for oil filter housing.

(Stubby between housing and block – If you it’s worth changing at the time)

The first timers

If you would like to avoid coolant sitting inside the tray….

1st Jack up the car, with axle stands. your self enough to be able to remove the engine tray using 8mm socket.

from above, remove covers using the T27 socket.

what you can move out of the way to make the job

I decided to remove the fuel hose from fuel to pump. I took this off the filter can, and covered the hole to keep out dirt.

I removed, what I can only is a test point, using a T12 and it out of my way.

I also removed the fuel sensor wires.

Allow to cool, and open the header to relieve pressure from

I then removed the water

NOTE: Be aware that may be some pressure still in the

I removed the small bore to the tank (6mm socket),

Then the large bore to the Radiator (7mm socket). And another small bore to the fuel cooler.

I thought it to clean the crud and dirt off the before I unbolted the housing. contaminants from entering my tracts.

I used a water-washable and a tooth brush, washing the dirt with clean once scrubbed up.

NOTE: is one more “hose” under the housing.

This is a stiff 2 or 2 hose with flared It is simply held in place by the force between the engine and thermostat housing. I re used the however, this would be a time to change it if you decide to do so.


It can only be changed when the is removed.

Be aware that the housing is unbolted this will fall away.

this would be a good to check the condition of all your

Remove the sensor wire the housing. Push the small release with a small driver.

Identify the three E12 bolts, one on top, two below.

I to get away with not removing the oil housing out of fear or dropping or seeping water into the oil

I quickly discovered that is much easier with removed.

Once removed, I the exposed area up with a cloth, and coved over to bits falling in.

Using a size E12 torq bit crack off the bolts on at a time, remove.

My housing was stuck to the and took some force to pry it

As soon as it came free the stiff hose’ talked earlier made a break for Falling down the side of the

Keep this in mind removing the housing.

Clean up the with cloth, and scraper if but be careful with the alloy It goes without saying, do not the face!

The new part will with a rubber gasket, fit in place.

Get your ‘short hose’ and press it into the in the block it came from, and up the housing, navigating between a rail and everything else in the while making sure the ‘short stiff hose’ sits in the lower opening in the

Once lined up, get your into the housing and nip them up.

sure the ‘short stiff is in place, and the housing is aligned the block. Once happy, up the bolts, bearing in mind you are tightening a hard bolt soft block, go one step too far and you strip the threads.

Advised is 9 Nm.

Mb b170 kühlerthermostat

Replace oil filter housing as as possible. Torque down to Strictly speaking, I should used a new ‘O’ ring.

Add this to list, if you like, when your thermostat.

Once start getting all you hoses in place.

I changed my hose at the same time. I left off the radiator hose till I am going to try fill this with coolant before I

Once all hoses are back in mix up some coolant.

Pour into the top hose, I to get 3 litres into the hose if started to pour out of the housing.

hose, tighten up clip.

Top up tank.

On the C270 there is an water pump mounted the drivers side headlamp. (I on my C220 CDI W203 and there is no pump) Switching on the ignition this.

I left it running for ten min in the that it may help remove air

After a lot of gargling, the noises

I then started that car and let it up.

As far as I am aware I have no air locks and the car is up and cools as it should.

Over the few days of running, keep an eye out for and check header tank if your paranoid (like

I left the engine covers off so I check for leaks.

600miles everything is ok.

My car warms up much and blows warm air within (80deg within 15min) an ambient of 5-6deg C, travelling immediately at 60mph.

Temp in the region of 85 to 95 deg C.

I hope this give a heads-up to anyone to change a thermostat one for the first

Save your self of labour charges

Mb b170 kühlerthermostat
Mb b170 kühlerthermostat
Mb b170 kühlerthermostat

interesting


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