[Markr]

Does seem strange. Does the suspension rise and fall correctly?

Was it ok from new, bad from day 1 or did it happen suddenly etc.

Not saying it is this, but with my last Jag, also with air suspension, a stone got caught in the suspension (we have a gravel driveway and must have flung up and got caught), and that caused me all sorts of issues with both ride quality and crashing. I had to jack that wheel up to let the suspension extend in order to get the stone out in order to restore bliss.

If under warranty, might be worth a chat with local dealers service manager, as if any good, will either know, or will have access to TSB’s for similar issues that BMW have seen.