Air suspension fault

[MPS]

I've been experiencing the air suspension fault message occurring on my dash which also kill my ACC. When I restart the car it clears itself until the next time. The car is still under Audi AUC warranty so I've taken the car to two Audi dealerships both who can see the fault code, clear it, undertake a test procedure which the car passes and subsequently can find no fault. The car tends to sit outside for a week or two at a time - after which I seem to have the fault message occur. Has anybody experienced similar? Could a low battery from lack of use cause the fault message? When used frequently for long runs I don't tend to have any issues.

Any advice appreciated as I'm not sure where to go with this now.

[morski]

whats the fault code?

[MPS]

They didn't tell me the fault code - only they could when it recorded the fault. The suspension has now dropped so the tyres are almost inside the arches. It's booked in at another Audi dealership on Friday

[morski]

It sounds like the compressor is on its way out. If uits out of warranty expect a big bill unless you get it refurbed. In warranty then your lucky. Make sure they change the relay too.