Stage 1 Audi A3 1.4 TSI MED17.5.5 ECU Binary – Software 509717 / SW 7355 0261S04859

Change log

  • v1.0 — 2025-05-30
    • Stage 1 base file creation for MED17.5.5 / 509717
    • Recalibrated fueling and ignition tables
    • Torque monitoring adjusted for smoother load transitions
    • No diagnostic code suppressions added​

Release notes

  • v1.0 — 2025-05-30
    • Optimized for Audi A3 1.4 TSI CAXC (2010) with 6-speed manual
    • Performance-oriented remap while keeping factory safeguards
    • Ideal for daily use, dyno testing or controlled-environment tuning​

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