Question about 2001 Mercedes-Benz C-Class
My car air conditioner blows cold air out the passenger side and hot air out the drivers side. Regardless of what setting I use the right side gets cold air while the left side gets hot air. I sense its a flow valve somewhere that's malfunctioning, but should be easy enough to fix since everything else regarding the air conditioner is fine. However, I have been told that the only way to solve the problem is to dismantel the whole dashboard. As you know this is very labour intensive and could cost $1,000.00.'s
Is there a short cut possibly, through a process of elimination, to get to the root of the problem?
Got one valve which control the coolant flow in for the heater..
it was sit under the front wiper cover..
some time it block.. and maybe u can knock the valve...
i tried one time the mercedes also.. one side cool one side hot..
the valve is block.. after i knock it.. it become ok...
Posted on Mar 04, 2009
You my the vacuum valve and vacuum connection,open your hood,left side near windshield,remove the cover ,make sure all vacuum connection are fitted..one vacuum valve maybe deff. or not proper connected,causes hot air come.
Posted on Feb 19, 2009
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Posted on Jan 02, 2017
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
Are there two separate adjusters for left and right, most of the Mercs had them, so the driver could have a different temp than passenger
Posted on Jul 21, 2009
Could be a number of things...electrical connections causing the compressor not to run. Turn on AC and turn your thermostat all the way to cool...now visually check to see if compressor is engaged and not just free wheeling. Most likely you lost your refridgerant due to leak in the system...would need to find leak and repair then have your system re-charged with refridgerant. Best case scenario...your system just needs a charge of refridgerant due to not having enough.
Posted on Jul 25, 2009
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