Mine isnt a vibration issue, it is more of a thud and rattle (not sure if thats the best description) from the steering rack vicinity over certain road surfaces. Not a vibration. Very noticeable.
The best way to replicate would be with car turn off completely, sit in drivers seat and slowly rock the steering wheel from left to right, and you can hear a loud and quite obtrusive noise from the steering rack, both inside and out of the car.
FYI I have neither VSS nor adaptive suspension.
Apparently BMW AG is sending their newest revised Steering rack from Germany and that it 'will' fix this issue... As I said previously... not holding my breath.
320d Sport line, F30 Alpine White,Black Dakota, Coral Red Trim, Brushed Aluminium, Sports Suspension, Sports Seats, Anthracite Headliner, Prof Sat Nav, Bi-Xenon, 18" 397 wheels, Reversing Camera, Side-view, Top View,Lane Change Warning, Lane Departure Warning,Anti Dazzle Folding Mirrors.