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Spare tire

Discussion in '2012-2015 VW Passat TDI forum' started by VdubDiesel, Nov 10, 2011.

  1. VdubDiesel

    VdubDiesel New Member

    Joined:
    Oct 12, 2011
    Messages:
    189
    Car:
    2012 Passat TDI SEL PREM
    Mods:
    HID Low Beam and HID Fog, Rain Sensor, Rain Closur
    Does the spare tire have TPMS monitor? I have a TDI SEL PREM PASSAT and I am wondring if a stock alloy wheel and tire will fit in the spare area. I am thinking of tossing the spare and buying a full size spare. Any suggestions?


    Thanks
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  2. tcm glx

    tcm glx New Member

    Joined:
    Oct 3, 2011
    Messages:
    62
    Car:
    2012 Passat TDI
    2012 Passat measure tire pressure via ABS Sensors, not using TPMS, so it does not really matter. You could easily pick up a full size spare and move forward with your plan.
  3. 69mach1377

    69mach1377 New Member

    Joined:
    May 11, 2011
    Messages:
    128
    Car:
    2005 Passat 2.0 TDI/PD
    How can ABS sensors sense tire pressure?
  4. chittychittybangbang

    chittychittybangbang Administrator

    Joined:
    May 23, 2007
    Messages:
    20,927
    Car:
    2006 Jetta TDI
    Location:
    CT
    It measures the rotations off the wheel sensors and if one is off it knows something is off. Flat tire = smaller diameter.
  5. Keithuk

    Keithuk Super Moderator

    Joined:
    Aug 29, 2010
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    5,123
    Car:
    2010 Golf GTD (170) CBBB
    Location:
    Stoke on Trent, England
  6. 69mach1377

    69mach1377 New Member

    Joined:
    May 11, 2011
    Messages:
    128
    Car:
    2005 Passat 2.0 TDI/PD
    From the first article;

    "The last point is really the major downfall of Indirect TPMS, it requires the driver to recalibrate the system every time the tyres are inflated. If this does not occur the system becomes ineffective and there is no warning to the driver that the TPMS system requires recalibration. Many drivers are unaware of what TPMS is and even if they are they are not aware that they have to recalibrate the system and this can lull them into a false sense of security and less frequent checking of pressures (after all the car will let the driver know when a tyre needs inflating. Right?).

    If the TPMS warning does go off many users see the TPMS button as a reset for the warning, the car than calibrates for this lower pressure and won’t warn until pressures drop a further 20%. The driver assumes that everything is ok as the warning hasn’t come back and keeps driving oblivious to a problem with the pressures."
  7. VdubDiesel

    VdubDiesel New Member

    Joined:
    Oct 12, 2011
    Messages:
    189
    Car:
    2012 Passat TDI SEL PREM
    Mods:
    HID Low Beam and HID Fog, Rain Sensor, Rain Closur
    So since I drive allot and I purchased my V-Dub I decided to change out the temporary spare to a full size wheel and tire. I went ahead with a Moda MD14 wheel with a Kumho Ecsta ASX tire 235/45R18.

    When the tire and wheel arrived I was like this is not going to fit... But it fit like a charm, just need to modify the jack/tool kit holder. See pics... Hope this helps... Not sure why I chose this wheel and tire package but it will do the job.

    Attached Files:

  8. MyAvocation

    MyAvocation Member

    Joined:
    Aug 6, 2011
    Messages:
    253
    Car:
    Jetta TDI 2006.5
    Great post... thanks!

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