hey guys, i need help. i have a 2001 audi a6 2.7t quattro with a 5 speed auto and it has 195000 miles. i would get a vibration SOMETIMES between 65 and 80 miles per hour, after 80 it would stop vibrating. recently i replaced the upper front control arms, both front and rear frontward control arms, so 4 arms altogether for the front upper side of the car, tire wear is even and wheels are balanced.....rotors and pads brand new. with the new arms the feeling is much tighter and like new but the vibration is now from 65 up to 85 mph, sometimes it vibrates and sometimes it doesnt. in a straight line cruizing for example it comes and goes, i feel it in the seat and body and slightly in the steering wheel.... mecanich said lower front driver side trailing control arm bushing has peice mishing piece missing from it....could it be that? i need help this vibration is the only kink in an otherwise great ride. thanks

 

I also had some strange vibration starting around 60/65 mph. I replaced all the front control arms, axles and struts. Vibration was still there until I replaced my tires with a different brand. My older Goodyear tires were just a huge pain, every couple of months I had to get 1 replaced (not just 1 side/rim but all around) and my local shop just couldn't balance them correctly.
Anyhow I replaced the tires with Conti's and never had an issue since (1 year now). Might be the same thing?

 

Any fix to this issue?? I have the same thing and people are telling me its the transfer case in the trans

 

Sometimes is the toughest problem to resolve. It's not brakes, unless it happens when you apply them. I have experienced strange road noises (vibration) from uneven pavement. In the winter, ice inside a rim could cause vibration. Vibration is normally caused by out of balance wheels. You could keep throwing money at it or buy a $150 radar detector and drive over 80.

 

I also have the same problem I took it to the shop and replaced the trailing arm has stoped since

 

thank you guys sooo very much for helping, i was in a fidderent in for a few months so please excuse the tardyness of my response, ok........so. the vibration.....i replaced all 4 tires got an allignement and it went away....for a month.now back.. im going crazy, im gonna replace my lower control arms as the bushings are kind of dead and see what it does...also, can anyone helo me with where to go get my turbos replaced?

 

lmao at sheldon, i already have enough speeding tickets as it is...anymore and i may be in a lot of trouble