Quote:
Originally Posted by Gemcoska
Hey guys,
This sound has been happening my 2008 E92 m3 for a month now and I don't know what it is. Seems to happen when I'm bouncing on/off engine braking or applying initial acceleration in 1st. When I'm in stop and go on the 405 it happens all the time. Some searches indicate that there might be a loose bolt in my diff. Where would these bolts be? Others say it might be a bad cv joint. Others say it's an indicator of a diff going bad. I replicated the sound going
back and forth in drive then I think I was able to replicate a quiet version by turning the wheel hubs while the car was on stands. Hoping someone here will have some obvious answers.
The sound while driven
The sound on Jack stands
Thanks in advance
Rob |
Sounds to me to be the classic “cowbell”. Centre support bearing may be the culprit.