I have an A4 1.8T Sport Cab 2003 model. Tyres Continental sport contact 2 235 45 17 y. I got 16,000 miles out of the fronts. Tyre dealer said I could expect no more that 20,000.
Strangly the centre of the tyre wore out first. I asked the tyre fitter and he said it was usually due to over inflation. I run my tyres at 32psi all round as the handbook states.
I was wondering if running the tyres at 30psi would be ok and make the tyres last longer.
My rears will probably do about 20,000 miles which is still not very good at £120 per tyre

 

I have seen that problem more & more latley with the conti's I have been selling the michelins here and the guys are putting in 32 psi no problem I just think the michlen is a better tire the only problem you will have is if you want to change is if it is a quattro you will have to change all four