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235/35 ZR19 Tyre Pressure

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by [PT] Quattro, Aug 14, 2009.

  1. [PT] Quattro
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    [PT] Quattro New Member

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    [Aug 14, 2009]
    Hi!

    I recently fitted 235/35 ZR19 tyres in my A4 Avant.

    I'm using 2.6bar/37.7PSI in all tyres for normal usage but I don't have a clue if it will worn the tyre equally.

    Since this measure does not have any support by Audi (at least for this model) do you know any recommended Tyre Pressure for both normal and loaded/motorway usage?


    Thanks to all!
    Cheers.
    #1
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  3. Richardesty
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    Richardesty loves quattro

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    [Aug 14, 2009]
    I've always understood that you should run them at factory pressures :readit: even when making the change you have.
    #2
  4. [PT] Quattro
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    [PT] Quattro New Member

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    [Aug 14, 2009]
    I guess not.

    I have 2 OEM pressure settings for A4 (B7) Avant depending on the size:

    NORMAL LOADED
    SIZE FRONT REAR FRONT REAR
    235/45 R17 31.9 31.9 37.7 37.7
    235/40 R18 39.2 34.8 42 42

    Because 235/35 R19 is not supported Audi don't have any information about tyre pressure.

    Cheers
    #3
  5. Yellowtrophy
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    Yellowtrophy Member

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    [Aug 15, 2009]
    I have the pressures at 32psi in my 235/35 R19s (2.0T FSI S-Line Cabrio). I was advised by two different sources that this would wear the tyres most evenly.
    #4

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