Puzzling noise, right rear over bumps

[repenttokyo]

I posted last month about a booming or banging noise that I have been hearing from the right rear of the car when I ride over bumps in the road. I had the entire suspension checked out by a mechanic I trust, as well as the rear subframe mounts, and everything was fine with the exception of a ball joint, which I had replaced.

The noise is somewhat lessened now, but it is still there. What else could be loose or banging around back there when I go over a bump? It is a bushing issue perhaps, something that could be missed when doing a suspension check? There is no metallic aspect to the sound at all.

[Tiger]

I can only guess shock and shock mount. Possibly bad spring pad that cause metal to metal contact.

[repenttokyo]

I can only guess shock and shock mount. Possibly bad spring pad that cause metal to metal contact.

my guess as well, but shock mount and shock checked out. Shock is about 2 years old, bilstein sport, and the upper shock mount is also 2 years old. I will however be checking everything again myself because this is really puzzling.

[Tiger]

Did you cut down the shock bumper?

[repenttokyo]

Did you cut down the shock bumper?

I removed the bumpstops when the shocks were installed - is that what you are referring to?

[Black 535i]

I had this as the source of a major PITA noise once and once I made sure it was all tightened up back there the noise went away.

[repenttokyo]

I had this as the source of a major PITA noise once and once I made sure it was all tightened up back there the noise went away.

Excellent suggestion - I will take a look at that this afternoon!

[Tiger]

Yep, bumpstop

[repenttokyo]

I had this as the source of a major PITA noise once and once I made sure it was all tightened up back there the noise went away.

took the jack out - didn't help

[repenttokyo]

Yep, bumpstop

they are gone.