I've been having issues with a vibration coming through the steering wheel above 67mph, doesn't go away up over 90 either. At first, we thought it was due to new tires, but the dealer installed 3 different sets of rims/rubber on my 2004 S and all sets had the vibration. He then took my rims/rubber and put on another Cayenne and it produced no vibration. Now he suspects the ball joins in the lower control arms? Anyone have their changed out? I only have 45k on odo. Seems low mileage for worn out ball joints? But I guess with the weight of the vehicle and the age, it's time? Dealer wants around $1,100 for the job, ouch!

Thoughts or similar experiences or advice please?

 

Some say the issue is caused by the servotronic steering control component. Some say the issue is cured when they buy new wheels and tires.

Here are the threads addressing the issue.

https://www.6speedonline.com/forums/...wheel-22s.html.
https://www.6speedonline.com/forums/...vibrating.html
https://www.6speedonline.com/forums/...rations-2.html
https://www.6speedonline.com/forums/...ion-issue.html
https://www.6speedonline.com/forums/...-my-tires.html

 

Thanks for the reply, I'm not sure I agree with the ball joint thing either. Is the servotronic more of an intermittent occurrence?

 

I think someone got rid of the problem by replacing the control arms (bushings were bad). I have the same problem over 72mph. Right now I'm living with it, but I've noticed with different tires they still wear a bit odd even when it's within spec. It makes me wonder if the tires are "fighting" each other or something. I'm thinking about the control arm route with the Turbo S arms since they come with different bushings - shown on another thread.

 

hey,

i got the same problem after getting my winter tires installed and i always thought it was a balance issue so I probably went to 5 different tire shops to have my tires balanced but the result was always the same, until I had them balanced at the porsche dealership. Most of the porsche dealerships have an automatic balancer that installs the little loads automatically so it is really precise. You should give that a try.

 

Thanks Canberk, I've already had mine road force balanced three times now to get it right by the dealer. Even had the Hunter rep show up to make sure things were setup right.

Anyone know how to check the cardan shaft for out of balance?