This morning I had a terrible noice and vibration when I started my P85-14. It was like the steering wheel was rattling for a few seconds. After that I got a red error message about the air suspension in the dashboard. When trying to adjust the air suspension height I got error messages that it was not available. The front of the car also got extremely low. Somewhat later after I had the car powered down the suspensions worked fine, only to return after a couple of hours. Is this similar to your problem? Was the problem something with the wiring?
No, my issue was purely electronic, where the car could not adjust height. Your issue sounds mechanical, given front of car dropped and you heard noise along with vibration. More likely a problem with your air compressor, leak in an air shock or other related item, depending on the error message and whether entire front drops vs. one side.
Aha, the whole front drops, but at some point things get back in order and I can raise and lower the suspension as designed with normal sound and behaviour. But the problem returned after parked a few hours. So my conclusion is that the compressor actually works and so does the suspension struts but something is off. A glitchy sensor? Frozen valve? Any more ideas?
There is a controller unit that manages suspension height across all 4 air shocks, including compressor activation. If you have a slow leak or issue at the controller, it might be failing to regulate height after car sits for awhile. Your sensors must be working, if the car levels out again after startup. I recall some other threads on the topic, and so you may want to search accordingly.
