Resources for the Repair and Maintenance of your BMW M6
BMW M6 Models:
BMW M6 Problems
Rubbing Noise From Rear Differential When Turning
During tight, slow speed turning, a rubbing noise can sometimes be heard from the rear of the car. This noise is likely coming from the clutches in the limited slip differential. If the noise persists, the differential fluid can be replaced with a special oil available from BMW. On higher mileage vehicles, this noise may never be eliminated unless the differential is replaced.
BMW M6 Questions and Answers
I have a distinct clunking noise from the rear differential especially in the drive mode of the smg. After coming to a complete stop, the transmission is slow to engage first gear upon acceleration...
BMW M6 Stories
I have experienced the exact same issue with my 07 m6. I too had the flange and lube bulletin performed without any improvement or success.
I have had two dealers look at this issue and they are non responsive. I am going to have one more dealer evaluate this issue and then file a civil compliant against BMW this month. For a vehicle with an MSRP of $109000 BMW has to correct this issue or face the consequences.
I purchased this vehicle used with 23,000. I have a problem with a rear diff clunking noise when shifting. Other than this isssue the vehicle is perfect. BMW has a bulliten and fix for this problem but I just had this done and BMW's (new flange and lube replace) fix did not correct the problem. I believe that all M5's and M6's have this problem and BMW needs to address or face a class action law suit which I will be happy to initiate.
this car is the shiz