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Highway vibration.. Not tires... Help please:)

20587 Views 73 Replies 24 Participants Last post by  FABOCH
Greetings, I have been having on ongoing issue with highway shimmy from 55-80mph. Had tires replaced (245/45/19 conti pro contact) twice, and road forced, shimmy still present. I am very frustrated because I had a BMW dealership look at it and they said visually everything was okay, must replace the tires, which I did and still no luck. Could this be the ongoing issue I have read about on the lower control arms that go bad? I have an 2004 745li with 87k miles. Any suggestions is much appreciated. Thanks. -Andrew
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Bent rim, drive shaft out of balance, u-joint going bad etc.
Rims are actually fine, not bent at all. And it is more of a front end vibration, coasting and accelerating.
What makes you think the rims aren't bent. Hard to tell sometimes. However, if the vibration ONLY occurs at certain speeds, it is probably the tension struts. That speed is USUALLY starts around 50MPH and (mostly) goes away once speed increases (e.g. my vibration goes away @ 60MPH). I am getting mine replaced this week
Rims are actually fine, not bent at all. And it is more of a front end vibration, coasting and accelerating.
As fate would have it, I am a service advisor at an audi dealership. And my experienced team of Audi technicians, couldn't diag a 7 Series if their life depended on it. But every other week I have my techs road force the front tires in hope to get the vibration solved. Should I start with replacing my tension arms, and hold of on the wishbone arms? Or replace them both? Could the wishbone arm be the culprit as well?
I had a vibration issue on my 06 7 before i sold it recently and turned out my calipers were seizing up. Had to replace them all.
its probably the cv joints in the front have them both replaced and it will be good
Actually, just brought it in to the BMW dealership again, 3 technicians including the shop foreman were on it, and they thought it was most likely the guibo (flex disc) behind the trans. Had it replaced, vibration still present. Had all four tires roadforced under 18lbs, no rims bent evident, all four front lower control arms replaced, strut mounts and strut bearings replaced. Vibration still present. Most heavily noticeable at 60mph with my foot barely on the pedal. Ugh. I am at a complete loss for words. And find this very frustrating to say the least because it is still not resolved. Any previous experiences and suggestions??
Have you thought about wheel bearings?
Have you tried a different set of rims ? Id look into your brakes to see if a caliper is stuck. Check for uneven wear on rotors.
Have your Audi guys look at the car backwards so they can pretend its FWD.
Have your Audi guys look at the car backwards so they can pretend its FWD.:rofl::rofl::rofl:
Have you thought about wheel bearings?
Have you tried a different set of rims ? Id look into your brakes to see if a caliper is stuck. Check for uneven wear on rotors.
Have your Audi guys look at the car backwards so they can pretend its FWD.
Dude I had exactly similar problem at the same speed in my Audi cabriolet ....I replaced tires . good them aligned balanced nothing worked ...it turned out to be the cv joints in front

ask them about it
Actually, just brought it in to the BMW dealership again, 3 technicians including the shop foreman were on it, and they thought it was most likely the guibo (flex disc) behind the trans. Had it replaced, vibration still present. Had all four tires roadforced under 18lbs, no rims bent evident, all four front lower control arms replaced, strut mounts and strut bearings replaced. Vibration still present. Most heavily noticeable at 60mph with my foot barely on the pedal. Ugh. I am at a complete loss for words. And find this very frustrating to say the least because it is still not resolved. Any previous experiences and suggestions??
Your problem is the Thrust Arm Bushings. Need to replace either the bushings or the whole arm assembly. Average coat at Dealer 1200.00us... Or DIY...

This for the E65 and E66 models w/rear wheel drive....
I just had the thrust arms replaced (lower control arms) including the bushings. The thrust arms and wishbones arms were just done. Vibration still present. You would think the BMW technicians would tell me if the CV joint is bad or not when they replaced the guibo flex disc.
How is the alignment? is it pulling to any side at slow speeds?
:rofl::rofl: what does that mean??
Have your Audi guys look at the car backwards so they can pretend its FWD.
Im sure its the cv joint.

I was told by 2 audi technicians that the car is in in limp mode and i needed to replace some switch on the transmission and perhaps even the whole transmission ...I went for a 3rd opinion to an asian guy who wasn't an official audi technician ...He replaced the cv joints and the car became perfect.


It used to start vibrating as soon as I hit 80-90 km/hr
The alignment is actually dead on. Had my audi guys align it to perfect specification. Alignment was done after the thrust arms and wishbone arms were replaced. It feels exactly like a the wheels are wobbling, at highway speeds. Ugh...
Switch rims with someone and see its the same.
Im currently selling a set of BMW rims in the classifieds.
Get this, the BMW dealership told me it is most likely coming from the torque converter or internal damage in the transmission that is causing the vibration. They also founf leak valve seals, that will get alot worse in the next year and cause alot of smoke and other issues. UGHHHH!!!
i was told its a common torque converter operation

"its studdering because it wants to go into the next gear but it doesnt " was what the SA at bob smith told me
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