Quote:
Originally Posted by Chowbow
Got one more I forgot to post. The problem is a really obvious banging sound from the trunk when going over bumps and making turns. It is not subtle at all and sounds like something is definitely smashing around in the trunk. It comes from the upper rear shock mount, and if you have fold down back seats, you can hear it very distinctly if you fold one seat down and listen for it.
The problem is that the rear shock mount may not be properly seated inside the hole of the body of the car. It is part #6 in this diagram:
http://www.realoem.com/bmw/showparts...63&hg=33&fg=45
The nipple that faces up, fits into a hole in the sheet metal of the car. If the nipple doesn't sit in there properly (during installation, or it gets worn and breaks), then the actual metal part of the shock bangs against the sheet metal itself. To fix, replace that part and ensure that it is properly mounted.
Original thread where a few members had this problem:
www.e90post.com/forums/showthread.php?t=168304 |
In my case, that nipple disintegrated over a pothole and the shock extended fully upward - remnants of mounts and all. It was literally rattling around in the wheel well, and on compression would allow the rear tire to toe just a bit to make for some very white knuckle highway driving.
Super easy fix. Shocks are easy to replace on this car.