Audi Repair Questions? Ask a Mechanic for Answers ASAP
These windows are all controlled by one central unit in the trunk. You will need a multi-meter to correctly diagnose the problem:
1. Check for reference voltage (12 V) to one of the window switches. This is a Black/Yellow wire.2. If there is no reference voltage, check output from the central locking module at the right rear of the trunk on the Black/Yellow wire at pin B9.3. If there is no voltage at pin B9, check fuses 6, 14, 38 and power inputs to the module at pin B8 (Red/Blue), B4 (Red/Black), A8 (Black/Blue ignition on), and A2 (Red, key in ignition). Check for ground on B5 (Brown).
Here you go. Let me know if you need any additional info.
I would probably suspect the connector has corrosion if there is water back there. Unplug the harness connector, check for rust and corrosion and spray WD40 in there to displace the water and plug it back in. It just might start working again.
Let me know how it goes.
I can't find one new anywhere. It might have to be ordered from the Audi Dealer. Did you notice that it looked damaged?
I just wanted to see if you need more help. Please don't forget to rate.
Please let me know if you need any additional information. Don't forget to rate (that's how we experts get paid).