I have experienced a slight vibration noise since new. There is a constant faint droning sound, most noticeable at highway speeds. I always assumed this came from the Dunlop runflats. I also detect a very small amount of vibration feel and have not had my car to the dealer to attempt any repairs. At this time, I do not think what I am experiencing is unacceptable, but there is definitely something there. I am constantly aware of this issue from reading the forums and so far it has remained constant and not worsened as I put more miles on the car.
2012 535i M Sport, Alpine White, Oyster & Black Dakota, Anthracite, Premium Pkg, Technology Pkg, Driver Assistance Pkg, Premium Sound, Sport Trans, Head-up Display, Heated Seats, BMW Apps