I've had this A2 from new. There's been no prob's with it until last December when I had the two front tyres replaced (Pirelli's). The car went back to the fitters on three occasions in rapid succession as I thought that the wheels weren't balanced - I was getting a mild judder through the steering at speeds between 55 and 75 mph. After negating the wheel balancing theory, I took it to my local dealership (Gilders, Sheffield). They initially thought it was two faulty 'stepped tyres' which they replaced (wrong!). Then it was the F/O/S wheel bearing -replaced under warranty (wrong!). They've now replaced all four tyres and the 'judder' is still there - and I'm paying for the privelidge! Audi are now saying that three out of four of my rims have become 'warped' (they are the standard fit 16" SE 5-spoke alloys). I know the roads around Sheffield are c*@p, but are they bad enough to warp three out of four alloys? There isn't a mark on them. Any suggestions as to the fault would be appreciated