HELP Rear Diff noise 06' 330i
I am a parts changer and not so great at diagnosing sooo. I'm looking for advice.
I have a 2006 330i sport pkg with 104XXX been great but after a hard snow it has developed a rhythmic noise kinda a groan/scraping sound. It is constant from 30mph-130 mph.It It does seem like it vibrates less with increased speed. ( I'm guessing the centrifical force) It has new brakes all around within 10 K. Wheels do not have any play, and tires balanced after replacement fine (less than 4 K miles ago).
I currently have it jacked up on stands ( trying to track sound while tires spinning) and noticed noise much worse when engage DTC. It sounds like it may be coming from rear diff but not positive. I also noticed front of Diff. mildly jerking in a vertical fashion when surging. (i'm guess the traction control was trying to kick in from both tires spinning off ground)
ANY help greatly appreciated... and Have a great Memorial Day!
Thanks to all who have served!