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Bit of winter advice - tyre pressures

Discussion in 'A3/S3/Sportback (8P Chassis)' started by RobinA3, Nov 17, 2007.

  1. RobinA3
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    RobinA3 Active Member

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    I know most of you guys know this or have done this.

    Over the past week i have noticed that the car understeers and slids more on the road due to the colder weather and **** on the road

    so last night i dropped the tyre pressures down a couple of psi's so its now running 37psi (F) and 35psi (R) instead of the 40psi (F) and 38 (R) which i ran in the summer.

    the grip has increased so much more.

    might be worth doing if you have not already done so.
    #1
  2. mfspen
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    mfspen Member

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    The sticker on my car says 38F/35R for up to 3 people in the car, which is what I have always used.
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  3. garypaul
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    garypaul Member

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    Yep me to
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  4. emzino
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    emzino Active Member

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    Stupid question: where can I check the tyres current pressure. I know at petrol station you can set for it to inflate to a specific pressure but can it measure current psi too?
    #4
  5. garypaul
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    garypaul Member

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    Just buy a digital tyre pressure checker from halfrauds - they aren't expensive and it means you can check your tyres when they are cold.
    #5
  6. richjohnhughes
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    richjohnhughes Member

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    sure mine says 35f and 32r on 18s????
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  7. emzino
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    emzino Active Member

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    Gotcha. Are those digital infaltors any good too?
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  8. garypaul
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    garypaul Member

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    Nope should be 38f 35r
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  9. mfspen
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    mfspen Member

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    You were right !

    Just re-checked, and 38/35 is for a fully loaded car.
    35/32 is for up to 3 people, which is what my tyres are set to. No problems with understeer at these pressures.

    It could be that the Quattro needs higher pressures of course.
    #9
  10. Amchlolor
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    Amchlolor Active Member

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    Those are diesel pressures ( 18" wheels )
    Same loaded or unloaded.
    Anything else makes the car feel awful.
    #10
  11. garypaul
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    garypaul Member

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    nope -just double checked and confirmed that the recommended tyre pressures for my car (2.0T fwd with 18" wheels) are 38f and 35r
    #11
  12. mfspen
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    mfspen Member

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    But only fully loaded.
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  13. Amchlolor
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    Amchlolor Active Member

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    That's what I meant.
    The diesel is 38F / 35R regardless of load.
    The petrol obviously differentiates between loads.
    #13
  14. garypaul
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    garypaul Member

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    No it is 38/35 up to three people, over three people it is 41/41
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  15. mfspen
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    mfspen Member

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    Not on my car.
    Maybe there are different versions of the sticker, depending on make of tyre. Mine are Contis.
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  16. micalee
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    micalee "The Black Bullet"

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    If its 38f / 35r for up to three people and 41f / 41r for over three people, assuming the wheels are 18" and OEM, with OEM tyres, what would be the correct pressure for two people in the front, two in the back, of which one is an 8 yr old plus a cat and the wifes shopping! (forgot to mention, both in the front are adults, one of them is hard of hearing and the weather is fine, but fine rain is expected within the hour)?




    Sorry, no offense necessary, just had to laugh at these previous threads!:p
    #16
  17. Defratos
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    Defratos YouÂ’re Dethpicable!!

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    would 38f/ 35r work on the standard 17" S3 Avus wheels? because I've just used 34 all over usually
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  18. Twizzler
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    Twizzler Member

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    Well, mine says 39/35 on the filler flap.
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  19. sat1983
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    sat1983 Member

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    So what is it for A4 18s RS6 wheels on my A3 2.0 TDI?? Just got 35f/32r.
    #19
  20. alfiejts
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    alfiejts Member

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    Well my fuel flap says 33f/30r for 18s on a 2WD 3-door TDI S-Line with standard RS6 wheels and 36f/39r fully laden. That's a hell of a difference at the back between std and laden and also very different to any above....

    If anything I'd have expected the diesel to have higher standard front pressures than a 2.0T petrol because of the heavier engine lump.
    #20
  21. Amchlolor
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    Amchlolor Active Member

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    That's helluva different from my 38f/35r.
    If I let my tyres drop to 33f/30r, the handling, grip and steering goes all to pot.
    Go try 38f/35r and see what you think.
    It's the cheapest and easiest way to make a difference to your car!
    I don't get any untoward wear on the tyres to suggest it's too hard either.
    #21

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