The 2.0 TSI in a 2018-on Golf GTI, Tiguan or Cupra Formentor sits on one of a small family of Bosch MG1 ECUs, and only one hardware version of one of them could be done over OBD. Everything else needed a mail-in. Over the summer that closed up.
On 26 June Autotuner released bench read and write for every variant of the MG1CS031, including the CAN versions that were never OBD-capable, and for the MG1CS142, after a mail-in unlock. In July and August Magic Motorsport’s Flex added workshop boot glitch unlocks for the MG1CS011 (1.5 TSI mild hybrid) and the MG1CS111 (the 190 PS 2.0 TSI in the Arteon, T-Roc, Formentor and Octavia), so those need no mail-in at all.
Cars this opens up
- Volkswagen Golf GTI and Golf R (2020 on), Tiguan (2016 on), Arteon (2017 on), Passat (2019 on), T-Roc (2017 on), Polo GTI (2021 on)
- Audi A1 (2018 on), A3 and S3 (2019 on), A4 (2018 on), A5 (2019 on), Q2 (2021 on), Q3 (2018 on), Q5 (2017 on), TT (2018 on) in 35, 40 and 45 TFSI
- Cupra Formentor and Leon (2020 on); Seat Ateca, Leon, Tarraco; Skoda Octavia (2020 on), Karoq (2022 on), Kodiaq (2023 on), Superb (2019 on)
- 1.5 TSI mild hybrid (MG1CS011): Audi A3 and A5 35 TFSI, Cupra Formentor, Seat Leon, Skoda Fabia (2020 on)
What it means
This is the engine our Stage 1 was built on. The 245 PS Golf GTI typically makes around 300 PS and 420 Nm; the 190 PS 2.0 TSI around 250 PS and 400 Nm; the 150 PS 1.5 TSI around 185 PS. Gearbox files for the DSG DQ381 are available to match, and every file is written on our own rolling road.
Owners: put your registration into the tuning builder. Dealers: all four ECUs are covered by the file service; the Autotuner reads them after a mail-in unlock and the Flex opens the MG1CS011 and MG1CS111 in the workshop.
