Last Thursday, I bounced back from Town @25mph.
About 18 months ago my rear suspension was dropping to the bump stop, it went back to the vendor and they allegedly replaced the NSR suspension airbag, the car stopped dropping (both sides). Recently this has started again, but as before it always rose to the correct ride height when started. Until last Thursday, when it went down and refused come up again.
I've just been out to investigate, I started the car up to check the compressor, which was running, then stopped when normal ride height was achieved. I pressed the button to raise the back for off road driving and it went up further, as it should. I then switched the engine off, and went to listen for air escaping, I could hear nothing. I then bounced on the rear bumper and it started to go down again. When it got to the bump stop / axle I restarted the engine and it went back up again. I was checking the compressor, it had stopped, it was quite warm - perhaps expected, then it started pumping again, there was an almighty explosion and the back of the car was on the floor again. The NSR bag appears to have had it!
Obviously new air bags, clips and a bump stop are required. But I think the explosion was the symptom, what is likely to be the cause? Should the compressor still try to pump the bags up? it doesn't. I would like to replace the problem items in one hit, but I'm thinking that I will need to do the bags before I can check for air leaks in hoses or joints, am I correct?