The 5 series beamers have the same issue. Colleague at work has had his go on both sides.
I think most of those cars with air suspension end up going the same way, i.e. slammed. The air bag seals tend to perish and then the compressor works overtime to keep inflating them, eventually the compressors give up.
My old allroad had an electronic setting for 4 different ride heights, but one bag was leaking so the compressor kept inflating all of them, and it would confuse the **** out of the electronic settings. Some days it was set up like a drag racer and other days it looked like I was carrying around a load of gold bullion in the boot

