Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more! - Fan not running , car heats and AC not cold

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pk5555

Aug 18, 2011 03:49 PM

Fan not running , car heats and AC not cold

Hi i have a 2005 Audi A4 1.8t and the radiator fans are not turning on ! CAr heats after a while and the AC is not cold !

Fan control module ? Relay ? Any ideas

Thanks

PKK

pr0digy25

Aug 21, 2011 10:55 AM

Re: Fan not running , car heats and AC not cold

Run a VAG-COM on it. If you want to do some old school mechanics, run power directly to the fan and see if it spins, then you can rule out the fan.

It could be the relay... or perhaps the Coolant Temp Sensor, if it's buggered and not sensing the coolant is hot, it won't turn the fan on. The sensors are known to go in these, I just replaced mine for the opposite reason it would read high even from a cold start, and the fan would come on.

mikeh

Aug 21, 2011 11:17 AM

Re: Fan not running , car heats and AC not cold

Have you checked the fuses?

dineshkigul

Aug 27, 2011 06:04 AM

Re: Fan not running , car heats and AC not cold

IT may be the circuit problem i think . Better you can check it with the mechanich .

Maruti Swift

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