Bosch MEDC17.9 — Bosch diesel ECU on a Tricore core (TC1796/TC1797) — the mainstream TDI/CRDi platform of 2008-2018. On this unit the following is available: Stage 1 for power, removal from the logic of the diesel particulate filter (DPF), the EGR system, the AdBlue system, the catalytic converter/lambda, disabling the swirl flaps, Speed Limit Off and DTC Off, rollback to the factory calibration, oil pressure optimization. In the database — 38 modifications on Land-Rover and Jaguar. Read/write: Autotuner, MPPS, MagicMotorSport, KT200, FoxFlash.
The Bosch MEDC17.9 unit is found on 38 different engines. Main brands: Land-Rover (20), Jaguar (18).
The Bosch MEDC17.9 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 MEDC17.9 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 MEDC17.9 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 Autotuner, KESS3 (OBD), KTAG (bench), Trasdata. Checksums are recalculated on the engineer's side.
OBD flashing of the Bosch MEDC17.9 — 25-30 minutes, Bench (if needed) — about an hour. The file processing itself takes 5-30 minutes after receipt.
The cost of a Bosch MEDC17.9 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.