1999 c280 radiator fan problem
#1
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1999 mercedes c280 w202
1999 c280 radiator fan problem
Hello, I have a problem and I can't diagnosis it. First. The radiator fan itself is fine. The fan will kick on low speed at start if ac is on. Car is overheating and not kicking on. When I unplug the coolant temp sensor, the fan runs wide open high speed. I checked module and it seems fine. I can't locate the fan relay in the fuse box. I guess these cars have two relays for the radiator fan. I am going to include a pic, please someone let me know which relay(s) is the correct one, or if anyone thinks it is something else I need to change. Thank you.
#2
Out Of Control!!
Your MY does not have a aux fan relay. Your MY does have repeat does have an air control module which is faulty. Remove the left side under bumper paneling and look up!!
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1999 mercedes c280 w202
One more question...
I found that module yesterday. Is there anyway to test it? That part is rather expensive. Just curious. The one in my car is aluminum. Looks like a mini amp sorta. Any help is appreciated
#5
MBWorld Fanatic!
Your car has a suction fan module! Under fender lining. Either there is water ingress into the module or water ingress into front Sam! Open the cover on the the suction fan module and check for corrosion