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How to diagnose and fix a faulty radiator fan in an Audi 80?

I recently noticed that the radiator fan in my Audi 80 is not turning on, causing my engine to overheat. How can I troubleshoot and repair this issue?

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Answers (3)

First, check the fuse and relay for the radiator fan to make sure they are not the issue. If they are fine, then it is likely that the fan motor or the temperature sensor is faulty and needs to be replaced.

Before replacing any parts, it is important to test the fan motor by directly connecting it to the battery. If it does not spin, then it needs to be replaced. If it does spin, the issue may be with the temperature sensor.

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If the fan motor and temperature sensor are both working properly, then the issue may be with the wiring or the control module. It is recommended to have a professional mechanic diagnose and fix these problems.

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