1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Aftermarket Wheels and TPMS

Discussion in 'New A3/S3 (8V Chassis)' started by JT-007, Feb 17, 2014.

  1. JT-007
    Offline

    JT-007 Member

    Joined:
    Jan 15, 2014
    Messages:
    67
    Likes Received:
    25
    [Feb 17, 2014]
    Think I already know the answer to this but how does TPMS handle aftermarket wheels?
    #1
  2. Ads

    Ads

    [Dec 21, 2014]

  3. cuke2u
    Offline

    cuke2u Well-Known Member

    Joined:
    Sep 14, 2013
    Messages:
    2,105
    Likes Received:
    423
    [Feb 17, 2014]
    Doesn't matter as long as you reset it...
    #2
  4. visionthing
    Offline

    visionthing Active Member

    Joined:
    Oct 5, 2013
    Messages:
    136
    Likes Received:
    40
    [Feb 17, 2014]
    Indirect TPMS do not use physical pressure sensors but measure air pressures by monitoring individual wheel rotational speeds and other signals available outside of the tire itself. First generation iTPMS systems utilize the effect that an under-inflated tire has a slightly smaller diameter (and hence higher tangential velocity) than a correctly inflated one. These differences are measurable through the wheel speed sensors of ABS/ESC systems.

    On that basis, once the TPMS has been reset the sensors should work off the current values of the new wheels, then any changes would trigger an activation.
    #3
  5. JT-007
    Offline

    JT-007 Member

    Joined:
    Jan 15, 2014
    Messages:
    67
    Likes Received:
    25
    [Feb 17, 2014]
    Cheers guys
    #4

Share This Page