I have a strange rubbing/grinding noise coming from the rear end of my '09 e92 m3 that has me concerned. It only seems to occur when I'm coming out of my underground parking garage in the morning, which requires hard right turns with a little acceleration. I haven't been able to replicate the noise going left.
I've only had this car for a couple months (30k total miles) and am wondering if this has something to do with the rear differential. Has anyone else had a similar issue or does anyone have any advice? I haven't called the dealer yet.