New Tyres on an A4 Quattro - advice please
New Tyres on an A4 Quattro - advice please
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Discussion

benventura

Original Poster:

73 posts

241 months

Monday 19th April 2010
quotequote all
Hi all,

Got an unrepairable puncture on a rear tyre and being out in the wilds ended up having back pair replaced just to get me going.

I've always changed tyres in pairs on same axle but this is the first time I've had a puncture in a 4wd - the rears now have a different tread pattern to the fronts - is this OK or do I need to get new ones on the front as well? I know the manual says it's prferable to have matching tread pattern all round - what do folks think?

Advice welcome.

Many thanks.

mbrain

4,553 posts

199 months

Monday 19th April 2010
quotequote all
Hi,
I had this issue in January. All 4 of my tyres were 2-3 mm. My wife hit a pot hole which damaged the side wall of the f/n/s. As the tyres had a couple of 1000 miles in them I changed them all. In the past 2 months I've had to replace 2 more due to potholes! (Don't get Pirelli P Zeroos, they only have to see a pothole and they're gone!)

I've read that side to side and front to rear, the tread pattern should be the same and within 2mm. Not sure how true this is, but it makes sense to me.

Look forward to being corrected!

fatboy b

9,666 posts

247 months

Monday 19th April 2010
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I've kept mine within 1mm on the axle and 3mm front to rear. I've also got differing tread patterns front to rear at the moment. I have no problems.

mbrain

4,553 posts

199 months

Monday 19th April 2010
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Good to know.

blueg33

46,910 posts

255 months

Tuesday 20th April 2010
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A6 quattro handbook says same tread patterns and compunds on all four tyres and tread wear within 2mm (i think).

As others have said dont get the PZero Rosso's they are the worst tyre my A6 has had.

hman

7,497 posts

225 months

Tuesday 20th April 2010
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From a handling point of view its obviously best to have matching tyres and same tread depth as the system is designed for this- anything less is making the system work more than is designed for so in their eyes might invalidate a warranty. If you are out of warranty then I wouldnt worry about it.

Agree with not using P-Zero's, potholes, punctures, and not very good on the limit compared to the Michelin PS2's.

I'm running same tread depth but different manufacturers front rear and sideways (so 3 manufacturers in total).

This is because I hit a pothole, bulged a tyre when I was down at 3mm but had some spare 7mm tyres in the workshop so stuck them on with an eye to get another set of michelins when budget allows.

Your car is torsen equipped 4x4, I recently had a coupe quasttro whic was torsen, the winter wheels where gash and the tyres were 4 different manufacturers with 4 different tread heights. Managed 20k (taking it from 180,000 to 200,000) without problems.





fatboy b

9,666 posts

247 months

Tuesday 20th April 2010
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My figures on 1mm side to side & 3mm front to back are main-dealer guidelines.