can anyone please advise me i have a 03 w220 320cdi i was driving and the car really lunged as it went down a bump in the road when i stoped to park up i heard the compressor running for about 10 minutes after switching off the car .now the is down on the osr and the compressor does not run .the vehical rose on the other 3 corners at first but nothing now and a save something deactivated fault has come up on the dash .? can anyone please advise me how or if i can overide this or how i can test the problem ? thanks peter