Originally Posted by artifice
Could be the diff... dealership will put an additive in your diff to make it less noisy but in actuality it is normal, part of having an lsd. Does your car buck a little? also give a search a try... there a couple of threads on it.
Yes it's clunky and almost feels as if the wheel is stuttering and possibly locking up a few times rapidly. I don't care about the noise, it's just the stuttering that occurs. I had my friend who has a e60 M5 try it and said his car doesn't do that so I can't believe that it's a LSD thing. I'll swing by the dealer later and pick their brain today and possibly set up an appointment.