vibration damper 6792427

[272berry]

New to forum here's my first post
I'm in the process of replacing the rear wheel bearings on my e89 and trying to sort a clunking noise that I was getting over speed bumps that I thought was from shock absorber mountings. This has meant taking out the trailing arm to remove a seized hub at which point I discovered there was nothing wrong with the shock mounts but the source of the noise was a failed vibration damper that is attached to the trailing arm near the main bushing with a long bolt see picures. I think it may also be knocking on the aluminium A frame under the car which bolts on between the diff area and the sides of the car but can't be 100%sure.Anyway the local dealer can supply new ones at £101.76 an absolute bargain. This begs the question are they actually needed and what are the ramifications of removing them entirely?

 

[Deepseaskateboard]

New to forum here's my first post
I'm in the process of replacing the rear wheel bearings on my e89 and trying to sort a clunking noise that I was getting over speed bumps that I thought was from shock absorber mountings. This has meant taking out the trailing arm to remove a seized hub at which point I discovered there was nothing wrong with the shock mounts but the source of the noise was a failed vibration damper that is attached to the trailing arm near the main bushing with a long bolt see picures. I think it may also be knocking on the aluminium A frame under the car which bolts on between the diff area and the sides of the car but can't be 100%sure.Anyway the local dealer can supply new ones at £101.76 an absolute bargain. This begs the question are they actually needed and what are the ramifications of removing them entirely?

I also have this issue.
Which dealer did you try?

I also need to source some new ones

 

[B21]

New to forum here's my first post
I'm in the process of replacing the rear wheel bearings on my e89 and trying to sort a clunking noise that I was getting over speed bumps that I thought was from shock absorber mountings. This has meant taking out the trailing arm to remove a seized hub at which point I discovered there was nothing wrong with the shock mounts but the source of the noise was a failed vibration damper that is attached to the trailing arm near the main bushing with a long bolt see picures. I think it may also be knocking on the aluminium A frame under the car which bolts on between the diff area and the sides of the car but can't be 100%sure.Anyway the local dealer can supply new ones at £101.76 an absolute bargain. This begs the question are they actually needed and what are the ramifications of removing them entirely?

Good question..I’ve often pondered this..classically these are things added after the fact…in testing some sort of vibration / resonance appeared under certain circumstances..these cludges are there to address an underlying and unexpected issue..but what , when who knows?