View Single Post
      12-03-2012, 04:08 PM   #4
Enlisted Member
Drives: 2007 335Xi
Join Date: Apr 2011
Location: Kenmore, WA

Posts: 31
iTrader: (0)

Originally Posted by michaeldch View Post
... replace the 4 'routine maintenance' parts (belt, tensioner, both deflection pulleys) and see if the issue is resolved....
This resolved the issue entirely - engine sounds so much smoother.
Total cost was ~$280 for the parts and shipping and it took about 2 hours for removal and reinstallation.
Hope this helps someone else... my 335xi now has 50k miles.
2007 E90 335xi
Cobb AccessPort, BMW Performance Exhaust
michaeldch is offline  
Reply With Quote