Wheel alignment solved my lower to access concern.
I just got my 3 back yesterday from the dealer and all is well. He redid the alignment - well reset a front tie rod and properly tightened the lock nut this time, I hope.
About a month ago, I noted that the the steering wheel rotated to about 10:00 O'Clock when driving in a straight line, previously it was at 12:00 O'Clock as normal.
Then when I went on the highway, after about 20 km of sort of straight road driving, no stopping, the Brake yellow light would illuminate, then the DSC light and then the suspension light plus a series of warning messages, not HDC, no DSC, and Air Suspension Lowering - to access height rather than the stops and the ride getting a bit bumpy. In town, because of the stop and go, and constant lane changing etc, the lower to the stops or lights going on condition did not manifest itself.
Now with the steering wheel back at 12:00 O'Clock, all is well again. Apparently the tie rod end locknut has loosened and things were on the move - and yes, the steering was not so good.
It was the steering wheel rotation sensor telling the computers that the 3 was turning, the yaw sensor saying no and the wheel rotation counters suggesting a straight line as well and the computers being programmed to release the air whenever these is any confusion about anything.
What bothers me is that I think the 3 is just too smart for itself. I know it is designed for the Autobahn to give Beamers something to chase, (3 ton brick outruns chick magnet again), but sometimes ... The good news is that by removing the F26E or the F35P fuse, I can now beat the computers for the most part. I amuse myself that I still have some control.