Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
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did they verify the fan is running? I found a reported case of the Fan Control Module n76 causing this code and also causing the fan to run constantly.
I am attaching this report below:
let me know if you need more information
The message ONLY comes on when the outside temp is around 80 and the car has been sitting in the sun. Then after the car runs it will go off and then click on again later. It is not a constant "engine fan" message when the key is turned on.
in this case it is quite possible the engine fan is setting the code.
where they able to test the operation of the fan?
sounds like everytime it gets warm enough and the fan wants to run is when you are getting the message
did they verify the fan is running or not? also did they verify it is getting the power signal?
they should not need to guess whether it is the fan or the control... either the fan does not operate (they can power the fan directly to test this)
or it is not receiving the power signal to come on.
ask your mechanic if the fan runs? and if not did they try powering it? also did they check for voltage signal to the fan when warm?
it is most likely going to be the FAN MOTOR itself.... or the FAN CONTROL MODULE
they need to perform the tests I mentioned
click here to view the wiring schematic of your fan circuit
let me know what they tell you
Your answer souunds logical to me! Now, how do I get back to you without having to pay again? Also, can you approximate cost of repairs for either of the the fan or the control module? I see you are from Newington so your estimate should be close.
We can continue communication through this thread. you receive a message to your email any time I respond to your questions and there is a link there to bring you back into the question.
I do not have any pricing on the parts
but labor on the fan should be around 1.5 hours
and for the Fan Control Module labor would be less than 1 hour
just curious where does it tell you I am from newington?
Your profile. Actually if you have 20 years experience you may now be living outside CT. Your profile lists your education with Newington being the first and having a CT license.
Oh ok... I just never had any one mention it before so was wondering.
anyway yea you should just verify the FAN MOTOR does run when power is jumped to it. and then you know the motor is good and the problem is most likely in the FAN CONTROL MODULE
remember to click accept so I get credit for my answer
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