I have a intermittent fault with my air suspension going down. The suspension goes down when parked and engine turned off and until recently seemed to be mainly in cold weather. The suspension comes back up once the engine is running again although on some occasions this has not been the case. Recently it has started to go down while driving making the ride very uncomfortable if this has been the case the suspension won’t come up until the car has been switched off and stood for awhile. I have had the pump and suspension air bags checked out by a independent garage who says they are ok. Would appreciate any help.
Thanks
John
