Stage 1 VW Passat B9 2.0 TDI DSRA ECU File – MD1CS004 05L906022BK SW 056306 05L907309B

Change log

  • v1.0 — 2025-06-01
    • Initial Stage 1 calibration with Vmax lift
    • Torque, boost & rail maps optimised; EGT targets balanced
    • Checksum correction & CVN patch applied
    • Validated flashing via FLEX Bench​

Release notes

  • v1.0 — 2025-06-01
    • Designed for tuners seeking a safe single-file Stage 1 upgrade for Passat B9 MD1CS004
    • Provides crisper throttle and ~10 % stronger mid-range while preserving OEM smoothness
    • Works on stock hardware and emissions equipment
    • Package includes original file for quick revert
    • Off-road / motorsport use only — installer is responsible for local compliance​
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