Hi - I have exactly the same problem. Audi wanted 2400 to replace compressor and relay. But then said cant guarantee it will fix problem. Ive ordered bagpipe Andys kit but not sure wot to do if it doesnt work.
Any thoughts?
Thanks - I have really enjoyed it so far. Been to liverpool and south london from norfolk and everything is spot on. I know its early days but the q7 has exceeded my expectations.