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  1. #1
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    a4 3.0 tdi s-line avant tyre pressures

    help! my a4 3.0tdi came with 17" alloys on it but i have changed them too rs6 18" but dont know what the correct pressures are , as the pressures on the door pillar are for 16"or17" not a mention of 18" thanks in advance aldo286

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  3. #2
    1210tech's Avatar
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    Quote Originally Posted by aldo286
    help! my a4 3.0tdi came with 17" alloys on it but i have changed them too rs6 18" but dont know what the correct pressures are , as the pressures on the door pillar are for 16"or17" not a mention of 18" thanks in advance aldo286
    hi, i have the 2.5tdi engine (albeit in a B6 chassis) and i have upgraded to 18" rs6 with 225/40/18 tyres.

    the fronts i pump up to between 40 - 43psi and the rears between 36 - 40psi
    A4 2.5 TDi quattro sport saloon
    RNS-E DVD Nav running SW 0600 with 2007 disc including TMC function, Bluetooth Telephone, Audi iPod Interface
    18" RS6's now gone, replaced by OEM 18" S4 alloys
    Retrofit S-Line Bodykit
    Retrofit OEM Xenon's
    Retrofit Front Ambient Lighting
    Retrofit OEM Aero Wipers (thanks PJMSpeedy)

  4. #3
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    thanks 1210tech i am running them at 36psi at the moment will try what u have suggested , how many miles have you done ,do they seem to be wearing ok, aldo286

  5. #4
    1210tech's Avatar
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    yeah, haven't noticed any un-even wear at the moment but have only done approx 5k on them so far

    when i had my 17's on with 214/45/17 tyres i noticed that if i put anything less than 40psi in the front they would wear unevenly on the shoulders
    A4 2.5 TDi quattro sport saloon
    RNS-E DVD Nav running SW 0600 with 2007 disc including TMC function, Bluetooth Telephone, Audi iPod Interface
    18" RS6's now gone, replaced by OEM 18" S4 alloys
    Retrofit S-Line Bodykit
    Retrofit OEM Xenon's
    Retrofit Front Ambient Lighting
    Retrofit OEM Aero Wipers (thanks PJMSpeedy)

  6. #5
    rodenal's Avatar
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    Whoa 43psi is too high on 18" tyres.

    You should be running on 36-38psi
    *Gone* 1997 A3 1.6 facelift headlights, 16"1.8t Alloys, full rear tints. 110k

    You built a time machine.........out of a delorean!?!?!

  7. #6
    Teutonic_Tamer's Avatar
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    Quote Originally Posted by rodenal
    Whoa 43psi is too high on 18" tyres.

    You should be running on 36-38psi
    Where on earth did you get that useless and factually incorrect drivel from?

    For the OP, and others in a similar situation who size up their wheels and tyres beyond the spec on the door pillar sticker - compare the the load index (something like 95) of the previous tyre you had, along with the load index of your new tyre. If they are identical, then identical pressures should be a starting point. Bear in mind that lower profile tyres generally require a small increase in pressures, maybe 2-4psi, when compared to the next higher profile. You are perfectly free to experiment with tyre pressures, to "tune" them to your personal driving style, but never go more than about 3psi below recommended figures.
    Sean - Independent Motor Vehicle Technician (retd)
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    2007 Audi B7 (8EC) RS4 quattro saloon 4.2 FSI V8 32v (BNS) (with ceramic brakes ) - V-max = 9.8mpg @ 172 mph - WOW
    2006/7 VW A5 (1K) Golf Mk5 GTI 5dr 2.0T FSI (BWA) DSG, fully loaded, colour coded,
    1998/9 Honda CBR600FX - the blueberry trifle

    2003 Audi B6 (8E) S4 quattro saloon 4.2 V8 40v (BBK) 6sp man, fully loaded (gone, but not forgotten)

 

 

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