I've got a 2002 S3 with 16K miles on the clock.
10 months back I hit a pothole and had to change a front tyre (big
bulge), I had to change both front tyres as the very inside edges of
both were very badly worn after only 8K miles.
I took the car to a local specialist who tested and said front wheel
alignment was fine and suggested that tyre pressures or power steering
combined with lots of tight slow speed turning could be the problem.
I don't do lots of slow speed tight turning but I admit to having not
regularly checked the pressures.
Since then, I have been festidious about checking pressures but since
hitting another pothole and getting another nice bulge, I have had to
change both tyres exactly as before.
The specialist has suggested a 4 wheel base geometry check/fix at £100
but I am unconvinced this will help as I would have thought if the
front/back alignment was not correct then I would see different wear
patterns - not inside edges.
Anyone got any good advice?.
Other pertinent info - I mainly drive conservatively with no
passengers and with only the occasional bit of fun. The car veers very
slightly to the left but this may just be due to the road camber. I
also occasionally notice a very slight shaking/low frequency bass
noise coming from the front particularly when I am coasting downhill
at moderate speeds. Tyres have always been the standard Bridgestone
RE040's. Wear on the rear tyres is normal and these were changed at
16K which seems OK to me.