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Fan not running , car heats and AC not cold

Old 08-18-2011, 03:49 PM
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Default 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
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Old 08-21-2011, 10:55 AM
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Default 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.
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Old 08-21-2011, 11:17 AM
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Default Re: Fan not running , car heats and AC not cold

Have you checked the fuses?
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Old 08-27-2011, 06:04 AM
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Default 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 .


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