1991 S4 Auto
Hello Everyone,
The fans on my 928 have started running whenever I put the key in the ignition, even when cold. The only way to stop it at night is to open the bonnet! I was told the first thing to go was the intake temperature sensor, which I unplugged and it made no difference. Therefore the problem lies elsewhere...
I believe there are two or three possibilities... -Radiator Temperature Sensor, how to test this? -Fan Controller, I believe I can test this a multimeter somehow? -Auto Box Temperature Sensor, how to test this?
If I can test these sensors, especially the autobox one, from pins within the car that would be helpful!
Cheers!
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