|
I don't know anything about BMW-specific air suspension, so take my suggestion with a large grain of salt. I did have a mid-90s Lincoln with air suspension, and the control unit (that regulates pressure in each air spring) built up some rust and started to malfunction. We had already checked all springs and lines for leaks and couldn't find any, and it turns out that the culprit was the regulator. Perhaps this can be tested using the diagnostics of the car's on-board computer?
Good luck.
__________________
2013 535xi, Carbon Black, beige interior, M Sport package, HUD, DDC & ARS, ACS springs, Kelleners wheels
2010 Z4 35i, Crimson Red, beige interior, 6sp manual, Adapative Suspension
2000 528i, Cosmo Black, beige interior, Sport package (retired)
|