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How to troubleshoot a faulty radiator fan on an Audi 80?

I noticed my Audi 80's radiator fan is not turning on when the car is idling. I want to troubleshoot and fix the issue myself, but I'm not sure where to start. Any advice on what steps to take?

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Answers (2)

M

First, check the fuse and wiring connected to the radiator fan. Sometimes, a blown fuse or loose wiring can cause the fan to malfunction. If those seem intact, then move on to testing the fan itself.

C

To test the fan, you can try jumping the fan directly using a power source. If the fan turns on, then the issue is likely with the fan relay or temperature sensor. Replacing these components should fix the problem.

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