A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Radiator fan constantly on...

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Old 09-05-2007, 05:24 PM
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lb
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Default Radiator fan constantly on...

I noticed that my main radiator fan turns on immediately after starting a cold engine (with AC off). Is it normal? If not - any suggestions how to diagnose the problem would be appreciated. 97 A4 TQM.
Old 09-05-2007, 05:46 PM
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The belt-driven fan? Mine always spins, no matter what.
Old 09-05-2007, 07:51 PM
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2nd^^
Old 09-05-2007, 08:16 PM
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Default It should since it is meant to spin at low rpms

seeing thats when the car isn't moving to cause air flow thru the radiator.

The 2nd fan is the one that is off unless the AC is on or a high coolant temp is reached.
Old 09-05-2007, 10:49 PM
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Right.
Old 09-06-2007, 07:17 PM
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Makes sense, thank you.
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