Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, it sounds like you have a bad cooling fan control module. If the module shorts out the fan will run continuously.
Actually on your car there may not be a module. Do you have the two fans in front of the radiator?
Ok, try removing fuse #44 in the fuse box and see if the fans turn off.
under the hood
sorry I was pulled away
Did the fan turn off when you removed the fuse?
Ok, then you may have a bad fan relay. Let's try removing the relay and swapping it with a similar relay in the fuse box. I will post a picture.
I need to change computers. Don't go away.
Remove that relay and replace with another one of the same kind in the fuse box.
You will just need to remove one that looks just like it.
This is only for a test
Ok, did the fan remain off?
Ok, then the relay is bad.
Go ahead and get a replacement and you should be fine.
You're quite welcome
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