1997 BMW 528 Automatic 80,000 miles
When going over slight bumps, especially when turning right there is a quite loud clunk noise from the right rear. It sounds like there's a hard heavy object loose on the trunk floor. I've replaced the wheel bearing (which needed replacing) and the sway bar links because one had some play but the noise did not change. I took everything out of the trunk and checked to make sure the battery was very firmly fastened down. No change. I've yanked on and banged on every suspension part with a rubber mallet and cannot find a worn or loose component or a matching noise. The exhaust system and gas tanks also appear to be very well mounted. I'm baffled. Any suggestions for what to check would be greatly appreciated.
Sounds like a bad strut and/or strut mount. If it is only over bumps and all the bushings back there are good it is most likley a bad strut and mount. Kind of hard to diagnose but if u have a friend drive the car over a speed bump and you stand there and watch the wheel the noise is at you should be able to see the whole wheel jump alot.