SOURCE: 2004 Mercedes C230 Kompressor coupe
try the door module. get the one from the driver side and try it on the passenger side . most common problem on mercedes
SOURCE: 2001 Mercedes S500. Air conditioner won't blow cold even though
I think that this might help you. The a/c compressor is a continuos running type there is no clutch. It has a wobble plate internally wich changes the piston stroke. Screw the genises machine-it is probably only reading a partial on the climate control module. see if you can find the self diagnoses diagram either from the factory or if you have all data. you can pull the codes right from the unit itself and they will be accurate. If you can,t pull codes see if you can get an actual value of the sensors in the a/c unit. You should be able to pull that up as well if not try the genisis. Look very closely at you evaporater sensers(left and right) you will probably see a -40 degrees-that is the sensor default input reading when the sensor goes open. That sensor is used to moniter the wobble plate position of the compressor.
SOURCE: I have a 92 mercedes 400e that blow hot air, the
I would check and make sure that the AC compressor clutch is kicking in. If it is then you are probably looking at a restriction somewhere in the system.
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