Stage 1 Leon 2.0 TDI CR CUPA — EDC17C64 539136 Bosch — ECU Firmware 04L907309D

Change log

  • v1.0 — 2025-06-15
    • Initial Stage 1 calibration for Bosch EDC17C64 (SW 539136)
    • Torque model revised for a dynamic, high-performance driving experience
    • Boost and fuel maps optimized for the 2.0 TDI CR CUPA engine
    • Checksum integrity verified​
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Release notes

  • v1.0 — 2025-06-15
    • Package includes Original + Stage 1 binaries
    • Confirm ECU numbers (Prod: 04L906021EL, ECU: 04L907309D) and software 539136 before flashing
    • Compatible with tools supporting Bosch EDC17C64 controllers, such as CMD Flash
    • Designed for stock engine and exhaust components
    • Intended solely for off-road or motorsport applications​
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