View Single Post
      01-14-2013, 07:10 AM   #10
First Lieutenant
serranot's Avatar

Drives: 2011 E90 M3 6MT
Join Date: Mar 2011
Location: Rockville, MD

iTrader: (0)

Garage List
2011 BMW E90 M3  [5.00]
Originally Posted by jlee View Post
Hi there, just wondering if you ever figured out what this issue was. I have the same problem, at low speeds when I'm going up or down my parking garage at work when I turn left or right I get a whining/grinding noise.

if it were the power steering I would think the issue would be repeatable when I turn the wheels full lock left or right since the pump is working its hardest then. but i have to be moving at low speed to hear it, and it also doesn't appear at high speeds (which I assume the road noise is just drowning it out)

I wondered if it were the diff or the wheel bearings/hubs.

If it is while making tight turns, then you need the differential fluid replaced with the special fluid that contains friction modifier for the differential clutches. Part number is 83 22 2 282 583.