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Thread: VW tune. Reflash 125TSI -> 155TSI

  1. #1
    Join Date
    Nov 2011
    Location
    Semaphore, SA
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    8,708

    VW tune. Reflash 125TSI -> 155TSI

    Just wondering if anyone else has gone down the path of getting their 125TSI reflashed with either the 147 or 155 genuine VW tune.

    A couple of advantages I see strasight off is that it "should" still maintain warranty on engine/drivetrain if it's a genuine VW tune.

    The downside is that I don't think VW service would be too keen as every 125 driver would come through for a reflash and there would clearly be less incentive to buy the 147/155.

    If you extract the tune off a 155 can this just be downloaded into a 125 or is this just too simplistic.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  2. #2
    Join Date
    May 2005
    Location
    Melbourne, Mexico
    Posts
    8,994
    Users Country Flag

    Quote Originally Posted by tigger73 View Post
    If you extract the tune off a 155 can this just be downloaded into a 125 or is this just too simplistic.
    Not a silly question but from what I have seen at VW, when hooked to VW servers, it's not possible to flash the wrong code into an ECU.

    It's based on ECU part number and software coding. Unless there's a newer version of the software coding for an ECU then it won't do it.

    Although the ECU could be exactly the same inside and out, once it has software in it, it becomes unique. The part number, soft coding and VIN become embedded.

    Gavin

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