Question about 1994 Mercedes-Benz C-Class
Remove and replace 2 cooling fans on my mercedes benz C280
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Posted on Jan 02, 2017
You find a 17 mm bolt under the belt or a 15 mm bolt in the middle of the tension pulley. If you undo the bolat this will
release the belt tension.
To remove the belt turn the bolt by slipping a 4' pipe over the socket wrench handle.
Use a wrench as a lever to slide out the belt. Put the new belt last on the idler pulley that contacts the belt only on the smooth side.
Do not unscrew the Button Torx bolt in the center of the tension pulley, it is not needed.
Posted on Sep 01, 2008
I have a 2002 C240 Mercedes and need to replace the cabin air filter. Problem, I don't know were it is located or how to replace it. Can you help me.
Posted on Mar 21, 2009
Hello I'm a M.B. tech. 1st you need to know why the freon is low. Hopefully it just needs to be serviced. There is a component located in the lf of the engine compartment called a receiver drier. It soaks up the moisture in the freon so the gases can work the way they are supposed to. On this unit there should be 2 switches(I believe they were combined into one switch in 98. 1 switch is a temp switch that operates your electric fans, the other is a compressor cutoff switch. Assuming the compressor is not coming on-take a fused wire and bridge the 2 contacts- If the compressor does not come on at all there is another problem(it is not low on freon. On the condenser there is a high side port(it is the bigger of the 2)By the brake master Cyl.(lf of the engine compartment thereshould be a smaller low side valve in line with the fuel cooler hose. Usually you can hook up a machine to the low port and **** freon in through that port. Assuming you do not have a refrigerant machine. It is very self explanatory on the bottle of r 134a refrigerant which can be purchased at your local auto supply store. I would start with 1 lbs. and add dye with the freon in case there is a big leak. If the system is overcharged it will not cool properly. I believe the system capacity is approx. 2 lbs. Add a few ounces after the first pound until a/c system is cooling properly and the electric fans are also coming on when the system gets to high. If you get a can with a good Gage set on it you should see the high side between 150 and 2000 psi(fan coming on at max. press.) also the low side should read about 35. It is about the temp of the evaporator which is i=located in the dash and the blower blows through this component out through the vents. Hopefully I have been helpful.
Posted on May 28, 2009
I thought they where either on the side of the core support(follow the wire harness and it should go to the relay). If not remove the fuse box lid and then take out the screws retaining the lid housing and you will find a series of relays. There will be one for high speed (engine uses this when temp. is to high) the other is a low speed relay(this is the climate control aux. fan relay) They may have fuses on top of them I know the older models did. I hope I have been helpful.
Posted on Sep 09, 2009
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