I recently changed all the wheel bearing on my 2006 550i. It fixed the majority of sounds I have been hearing but I still am hearing something on the left - not sure if in the front or the back. Definitely has to do with the tires spinning and is more pronounced when I make a Left turn. Also more pronounced when I have more weight in the car as in more passengers. I do have slightly oversized tires in the back but doesn't sound like a tire rub. Could it be my axle on the rear left? Or some kind of a brake rub?