Volks AutosChris Nott
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  1. #1
    1st Gear

    Join Date
    Jan 2009

    4 Matching tyres on A6 quattro - how crucial is it?

    I've read on a couple of forums now that it is important to have 4 matching tyres with the same tread levels on all four corners with all A6 quattro models, to prevent any wear to the drivetrain. Something to do with it having a Torsen diff, rather than Haldex, apparently.

    I bought mine privately and whilst all 4 tyres have the same tread depth, the fronts are a different brand to the rears.

    Can all you quattro owners comment on your experiences, and whether you're running all 4 matching tyres?
    2013 A3 Sportback 2.0 TDI S-Line
    Phantom Black Pearl | Heated Nappa Leather | B&O | Technology Pack | Comfort Pack | Interior Lighting Pack | Parking System Plus | DAB | Alu Roof rails | Elec folding mirrors | Mono.pur | Rear Side Airbags | Elec lumbar

    SOLD 2007 A6 Avant 2.7 TDI Le Mans quattro
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  3. #2
    1st Gear

    Join Date
    May 2006
    really wouldn't worry, life is far too short. I had a C5 S6 for my last car 5 years and it never proved an issue 110,000 miles. just enjoy your nice car!
    3.0 TDI S Line Quattro Avant, Leather, Bose, Colour MMI Sat Nav, Phone, LED rear + Xenons

  4. #3

    Join Date
    Apr 2010
    matching brand is not an issue, you dont have to worry to much about tread depth, it may show a abs fault on the dash if you have brand new tyres on one axle and the other axle is worn to the limits. apparently the rolling radius tolerance is affected and can cause damage to the rear diff.

    it is important to have the same profile on all axles though.

  5. #4
    fjtwelve's Avatar

    Join Date
    Jan 2006
    Falmouth, Cornwall
    Depends how hard you drive. I had the same issue when i bought mine and things improved when i got all 4 tyres the same and got the 4 wheel alignment done. In my experience cheap tyres are a false economy see my thread on th handling forum
    2001 A6 Avant 2.5TDi quattro Sport 180hp+TurboDynamics MD438 hybrid+Bosio Race683s+3" exhaust+Celtic Tuning remap - now with adamss24 replaced with runabout
    2007 BMW 535d AM Sport + Celtic remap
    2004 A4 Avant 1.9TDi quattro Sport 130hp + Superchip - sold & replaced by
    2005 Audi TT 1.8T
    1988 Yamaha FJ1200 120hp finally traded after 23 years for
    1986 Yamaha FJ100 (1300 barrels shhh!) with too many bits to mention
    2011 BMW 320d M Sport son #1
    2004 Suzuki SV650 S son #2



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