dineshpunia22

Guys,
I have Audi 2007 A6 C6 3.2 AWD
I have installed Blistein B12 prokit to my front suspension system last weekend (B8 shocks and Eibach springs). Now I am having a lot of crackling noise in the lower front area on the smallest of the bumps.
Also the suspension makes a thud noise on bigger pot holes. I have a few questions for more experienced audi folks:

1- Do you think the front sway bar needs to be adjusted after installing the smaller eibach springs ? I torqued the sway bar links as per specs and they are pretty snug. I think the crackling noise on small bumps is due to sway bar/links not at proper height after the suspension install. So should I be doing anything special with front sway bar/links ?

2- I replaced both upper control arms as well (both sides)and tighten them to a point where a 10lb weight can move them. Should they be moving easily with a hand pressure or no ? Can this be a cause of thud noise on bigger potholes on New Jersey ?

3- I could not use the stock speedbumps as they wont fit on the Blistein B12 sports struts so I cut them to be an inch in length and installed it on new struts. B12 dont need sppedbumps as they already have internal ones. Should I remove the already shortened speedbumps to mitigate these issues.

I am running out of ideas and strength to do it again, any help will be highly appreciated. I still have to do the rear struts. I am thinking if this doesnt get solved. I will just use OEM struts and send these backs. (if amazon accepts it)
Seems to be at loss both ways.

Thanks
D

Sallad

Did you preload the bushings before torquing them down?

dineshpunia22

Hi what do you mean by preload the bushing. Which bushings ?
Please explain to me like I am five.

Thanks
D

raj99

dineshpunia22

I have fixed the problem. Basically , I did a bad job while installing the strut. I did not tighten the uppermost strut bolt using all the threads. Basically the upper strut both that goes on top of the mount needs to be using all threads and should be tight.

I didnt do that and there was about 1 cm of play between the strut threads and the mount. The continuous rubbing of strut mount also worn off the threads on the strut. I had to remove both sides struts, then got the thread renewed at a local shop , then I installed the struts again.

Major PITA, Lesson learned, but now I can do my audi struts in a better way.