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

• 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​

• 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​