Audi A4 Questions - Car starts and it shuts off/loses ... (Alta Bryant) The air con is working and the pipe is getting cold but I cannot get any cold air out of the vents. The air con specialists said there is a problem with the Audi compressor clutch breaking up. We've compiled some of the more common diagnoses they've come up.
It was caused by faulty BCM.
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Ive been told that it could be the pressure switch but I am not sure where this is. hi. Replaced the BCM with good one and coded it - after that air con worked fine. The auxiliary electric fans were not working at all so I replaced the control module.
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