In August, I had my struts and shocks replaced. I purchased the parts myself (Bilstein HD set from tunermotorsport.com, with spring pads and shock mounts). Ever since I had them installed, when going over bumps the back makes a sort of clunking noise that it never made before. The handling is improved, and accelerating/braking/turning are fine (no noise). Just going over bumps. Is it crappy shock mounts that came with the kit? If so, can these be easily changed to stock BMW mounts?
I don't know the condition of the rear sway bar links. The RTAB, to my knowledge, are the originals. When I had the work done, I told the guys to take care of anything that was worn out and they didn't mention anything.
Before I changed the shocks, though, everything was normal (except I could tell they were worn out by the ride).
I have the same issue. I start hearing clunking noise after I got new suspensions.
Noise only occurs under 30mph on light-heavy bumpy surfaces.
I just got a set of UUC RTAB for below $65. Will have them installed next week.
FYI, I changed the RSMs but clunking noise remains. I know one of my Rear Sway bar links is slightly bent since years ago, but I never bothered to change them. I will do the RTABs first and let you know the result. And These bushings including Subframe bushings are not easy to inspect unless you actually take them apart, then you might see some cracks on them.
Is it a dramatic difference in handling? I may try to tighten everything too. I don't think it's the differential though (at least not with me)...it's just on larger bumps I hear a clunk.
I have the same problem. I uninstalled and reinstalled the rear struts, tightened rear sway links and still have clunking. Is it possible that bad subframe bushings could cause the clunking?
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