I had my local dealer install a new NM rear sway bar, I love the way it makes the car handle, but there is a significant amount of racket happening in the back at low speeds (I suspect at high speeds to but to much ambient noise to hear.)
They said all parts are tight and properly installed. They also said that this is normal for all sway bars.
This doesn't really seem accurate. Anybody with the same problem or remedy?

 

It's not normal. Either they left something loose (like drop links) or the bushings are the wrong size for the bar.

 

Depending on which bushings you used, poly urethane bushings are always gonna be noisy.

 

Min CMS was doing the same thing this weekend. Mine was simple as a loose nut on the sway bar. Once tightened it was fine.

 

Mine has been doing it ever since I installed it 7 or 8k miles ago. Took it into the dealer and the response was that it was touching the bottom of the subframe. So I called up Jerry at NM ad he fabricated me two 3mm spacers to fit under the bushing and mounting holes so it will lift up the bar just enough to not hit the subframe. I'll let y'all know if that solves anything.

Kyle

 

Let me know how that works for you Kyle, I've got the same problem. --Christian

 

Turns out the dealer didn't tighten it properly, even after they said they checked it. NM is sending me spacers, but not sure ill need them now. Don't have the car right now because other dealer caused issues are being addressed. Last test drive though sound was gone.

 

I had a clunk in mine that showed up almost 5k miles after I installed it. It was the endlink slightly loose.

 

I'm looking into getting the NM rear sway for my Countryman as I had it on my '08 Clubman S. I was interested to hear what happened here.

I'm just going to throw this out there in case anyone is doing a search on the rear sway making noise and comes across this thread. On my Clubbie around the 3-4 year mark, the bushings holding the bar to the chassis had worn down not only on the inside but on the sides and the bar had some side to side play. This gave it a knocking sound that drove me nuts.

Also, a little hotrodder trick if you want to solve worn bushings is to wrap your bar with some electrical tape and re-install the old bushings in the interim until your new bushings arrive.


Cheers

 

Same here just had it dealt with today