Originally Posted by MelvinMrBMWBey
It sounds like you hit something and your trying to get BMW to cover your car, I see this alot, with certain customers. Its like the guy who gets a free car wash and comes back to complain about his car not being clean enough for free. Bimmers are expensive to maintain, If you can get it covered by BMW warranty more power to you.
You obviously did not the read the thread, or are not a very logical or technically minded person. My guess is you likely work for a dealership.
Sucks OP, as there clearly is no substantial damage to the diff. As others have said, a hit hard enough to sheer that bolt would have damaged the diff much more signficantly as well as other things around it.
I'm surprised that the large number of failures related to this part still hasn't changed how BMW deals with these failures. Either way your dealership sounds like a bunch of clowns trying to take advantage of you. $6000 to replace a sheared bolt