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ATS won’t fit my two new front tyres on A5 Quattro

Johnst66daytona Nov 26, 2018

  1. Johnst66daytona

    Johnst66daytona New Member

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    Ordered two new front tyres Eagle F1 Asymetric 3 tyres from Black circles, turned up and was asked after the car was up on the ramp is it front wheel drive I replied no it’s four wheel drive, I was rather told by the guy they could not fit the tyres as it was company policy that if there is a 3mm differential between the front and rear tread depths that due to the fact that it could affect the cars differential they were prevented from doing the work as claims had been made!

    Asked my Audi dealer about it today and they have not heard of such issues, surely the Quattro system determines the level of grip each wheel has and limits the power to each wheel accordingly effectively preventing such issues?

    Anybody lease had this issue?
     
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  3. daytonamart

    daytonamart Moderator Staff Member Moderator

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    I've never heard this before, I would suggest it might make sense to have both sides the same but not front and back.

    Maybe they were grumpy you had purchased from black circles?
     
  4. Moggie707

    Moggie707 New Member

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    I have heard this for our BMW Xdrive system from the service department, but they didn't say not to do it he just said the oil in the transfer case will need to be changed sooner due to it wearing quicker, but totally normal and the computer tells you when to change the transfer case oil.
    Yes its not ideal to have the front wheels turning at a different speed in a straight line to the rear but the centre diff should surly handle this in an Audi
     
  5. arad85

    arad85 Well-Known Member Team V6 Audi S5 Black Edition

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    Yup. DuckDuckGo 4 wheel drive transmission wind up. Always try to keep both ours (both 4-wheel drive) within 3mm.

    Whether the A5 suffers from it, but that is why they are saying no...
     
  6. rum4mo

    rum4mo Well-Known Member

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    I've always made sure that I've moved the wheels front to back frequently to even up wear for this very reason, I know that my old VX Cav GSI 2000 4X4 would show its annoyance if I tried that trick on it, these cars disabled the drive to the rear wheels during braking and you would feel/hear a big rubbery bump that told you things were not as they should be - that was only due to me buy 2 new tyres each from 2 different outlets to save money, I was a bit annoyed with Pirelli over that, sorted that out by buying yet another 2 tyres!
    While owning a 2000 VW Passat 4Motion, I always equalised the wear by moving the wheels front/back some with B8 S4, it just makes sense though Audi don't seem to have written anything in the S4 manual that suggests you should do that.

    I'd say 10/10 for ATS for working that way with any 4X4 as normally the customer knows nothing and will do nothing until it goes wrong, though I would have thought they could have offered to get you to sign a disclaimer, though maybe not the way they work, just easier to say "no".

    Edit:- when I replaced all the summer tyres on my S4, I chanced on an extremely good deal via the AA, it beat every other online supplier - and they sent me to ATS who slightly nipped every wheel with their kit, a bit annoying at first!
     

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