Results 1 to 7 of 7

Thread: Tyre pressures ???

  1. #1

    Default Tyre pressures ???

    Being a 70's sort of person I am surprised at the recomended tyre pressures.. I am a new owner of a 2011 335i convertible and the tyre pressure on the car recomend around 40 psi!! is this correct or am I old school???

  2. #2

    Default

    Sounds right. Today's cars are significantly heavier than cars 20 yrs ago. Most luxury cars today are fitted with low aspect ratio tyres (40, 45) so there isn't as much air in them hence the need higher pressure.

  3. #3
    Join Date
    Aug 2009
    Posts
    1,865
    Thanks
    11
    Thanked 35 Times in 30 Posts
    Blog Entries
    1

    Default

    40 sounds high... Are they run flats?

  4. #4

    Default

    Just for info sake - the tyre pressure needed if you have the correct size on the car is found in the drivers door seal. The "max tyre pressure" found on sidewall is the max for that tyre.
    If the tyre says 60 psi and the vehicle says 42 psi. You should adhere to the vehicle spec first.

  5. #5
    Join Date
    Feb 2015
    Location
    Sydney , Australia.
    Posts
    26
    Thanks
    0
    Thanked 1 Time in 1 Post

    Default

    Here's a query on this "Tyre pressure" subject.
    I had run-flats originally on my 120i, For the last twelve months I've been running "Non-Run-Flats".
    Running with the Runflats at 36-38 psi was murder! (no info on door)
    After the change over I went down to 34 psi.... and have enjoyed the ride and the handling!

    Back in the old days it was 24-26psi max.
    RegardZ
    Last edited by GarnZ; 30th April 2016 at 01:23 PM.

  6. #6
    Join Date
    Aug 2009
    Posts
    1,865
    Thanks
    11
    Thanked 35 Times in 30 Posts
    Blog Entries
    1

    Default

    yeah, all a bit strange.. I've got a S5 now, and the tyre pressures are super high and quite different between front and back (by 6 psi)

  7. #7

    Default

    Mine is a 323i 19" run flat tyres. The card on the vehicle provides a range for front and rear. The max for front is 42 and rear is 48. I set the pressure at mid point of the range.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •