Bosch diesel ECU on a Tricore core (TC1796/TC1797) — the mainstream TDI/CRDi platform of 2008-2018 — found on LDV and Maxus (2 modifications). On the Bosch EDC17C81, CHIPOK performs Stage 1 — power tuning, software removal of the diesel particulate filter, EGR, AdBlue, catalyst control, disabling the intake flaps, speed limit removal and DTC removal, return to stock, oil pressure optimization. Flashing is done via KESS3 / Autotuner / CMD Flash / FGTech Galletto.
The Bosch EDC17C81 unit is found on 2 different engines. Main brands: LDV (1), Maxus (1).
The Bosch EDC17C81 ECU supports: STAGE 1, LAMBDA OFF, EXT FLAPS OFF, ECO TUNING, ADBLUE OFF, CHECK STOCK OR NOT, DPF OFF, VMAX OFF, DTC OFF, OIL PRESSURE OPTIMIZATIONS. Checksums are recalculated on the engineer's side in WinOLS5.
The Bosch EDC17C81 is supported by: KESS3 (OBD bootloader), Autotuner, MPPS V21, KTAG (Bench for Tricore), Trasdata, CMD Flash. On production models OBD reading is usually enough; on locked variants — Bench (BDM/JTAG).
Stage 1 on the diesel Bosch EDC17C81 reprograms rail pressure target, SOI/EOI timing, boost target, smoke limiter and torque limiter. The torque gain is noticeable; the HP gain depends on the specific engine.
The original bin/hex/ori is accepted after reading via KESS3 / KTAG / Autotuner / MagicMotorSport. Checksums are recalculated on the engineer's side.
OBD flashing of the Bosch EDC17C81 — 25-30 minutes, Bench (if needed) — about an hour. The file processing itself takes 5-30 minutes after receipt.
The cost of a Bosch EDC17C81 file is built in the calculator: you pick the operations you need (Stage 1, emissions removals, service operations) and the price is calculated with the package discount applied.