Bad vibration coming from the rear

[sebastien]

Hello,

I bought my Audi A6 2.8 Quattro last January. Soon after I had a puncture on the front tire, I changed both fron tires and soon after that began feeling a vibration in the car.

I had the front wheels rebalanced. Nothing changed as I thought that maybe the tires had to adapt I left. Unfortunately it didn't get better, during my timing belt change I asked my VW dealer to check the vibration and he told me it came from the back tires that were ovoid.

So I changed the back tires. Still I could feel the vibrations and I noticed it more coming from the back. Soon after that my rear calipers had to get changed and I thought this might be the problem for th vibration so I changed the rear calipers, the rear rotors and the rear pads.

Still I felt the vibration so I decided to go back to my VW dealer and balance the back wheels which he did, but told me that the rear tires were ovoid. As I had an insurance on them I went to the place that replaced them first and asked them to put me new tires from the same brand as those in the front.

Now I have 4 new tires, new brake system and I still feel a vibration, I don't know what to do. Anybody has a clue?

thanks for the help.