TT tyre wear

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Discussion

trefor

Original Poster:

14,661 posts

290 months

Friday 8th August 2003
quotequote all
OK, so why are the tyres on our TT wearing more quickly at the rear than the front? I thought the Haldex made the car essentially front wheel drive until traction reasons gave some to the rears. Our TT has SO3s all round and the rears are ready to be changed while the fronts are only 50% worn. (All fitted at the same time BTW.) Tyre wear is completely even across the tread so no alignment probs.

Maybe the girlfriend isn't driving hard enough? (32mpg average due a lot of motorway cruising). But if she were I'd expect the fronts to be more worn anyway.

Gren

1,978 posts

259 months

Monday 11th August 2003
quotequote all
Never heard of this before. Mine seem to be wearing a little more at the front. Exactly what you'd expect from a car that's FWD most of the time.

Try the TT forum for a few more opinions but it doesn't sound quite right.

>> Edited by Gren on Monday 11th August 12:55

michaelrmcdowell

73 posts

263 months

Monday 11th August 2003
quotequote all
That dosen't sound right, I've done a few track days and took mine to a proving ground and it's the fronts on mine that are totaly shredded.

Which is what you would expect from what is essentialy a frontwheel drive car.

Possibly your Haldex unit is playing up?

Trefor

Original Poster:

14,661 posts

290 months

Monday 11th August 2003
quotequote all
Hmm, we had the Haldex ECU replaced under warranty (2 dealers said it was giving a checsum error - to me that doesn't mean it's not working ... maybe it wasn't). That was a good 7,000 miles ago. Didn't feel like it was running RWD only/bias or anything. I can feel when drive is passed to the rear wheels and you have to be really trying to kill yourself for that to happen.

The tyres (SO3s) on the front have about 3mm of tread and the rear is close to the wear indicator. That's in 20,000 miles. She got 26,000 miles out of the original Michelin Pilots which seemed to wear more evenly all round. I'll watch the next set of tyres to see how they wear (obviously getting rears first this time instead of all 4 at once - probably the newer Pilot Sports or SO3s (she needs the rim protector IYKWIM)).

T/.