Noises from the rear when turning...



I am getting a "clunking" or "thumping" sound from the rear when turning at low speeds, parking lots or turning at a stop sign or red light - sounds like a diff issue. The sound is present 90% of the time, and 10% of the time there is no noise upon turn. Bought the car used few weeks ago; still under factory warranty.

Upon questioning the previous owner, rear diff has already been changed once before (not sure at what odometer reading).

Car is 2011 E92 DCT; is not lowered (OEM suspension); has 15mm spacers upfront and 20mm rear. Also, brand new rubber (Michelin PS A/S 3s all four corners).