Bosch control unit — found on Citroen, Peugeot and DS (26 modifications). On the Bosch MEV17.4.2, CHIPOK performs Stage 1/2 — power tuning, software removal of EGR · AdBlue · catalyst control · EVAP, disabling the intake flaps, Pops & Bangs, speed limit removal, DTC removal, return to stock, IMMO bypass and Cold Start Off. Flashing is done via KESS3 / Autotuner / CMD Flash / FGTech Galletto.
The Bosch MEV17.4.2 ECU is fitted to 26 engines in the CHIPOK database across 3 brands. Top: Citroen (15), Peugeot (9), DS (2).
The Bosch MEV17.4.2 ECU supports: STAGE 2, COLD START OFF, NOx OFF, EGR OFF, STAGE 1, FLAPS OFF, VMAX OFF, DTC OFF, POP AND BANGS, IMMO OFF. Checksums are recalculated on the engineer's side in WinOLS5.
The Bosch MEV17.4.2 is supported by: KESS3, Autotuner, MPPS, KTAG, CMD Flash, Trasdata, MagicMotorSport. On production models OBD reading is usually enough; on locked variants — Bench (BDM/JTAG).
Stage 1 on the petrol Bosch MEV17.4.2 reprograms ignition timing, lambda target, boost target and wastegate duty (on turbo), throttle response, VANOS/VVT phase, torque limiter.
A Bosch MEV17.4.2 file is accepted in .bin/.hex/.ori format (full read) from any programmer: KESS3 / KTAG / Autotuner / MagicMotorSport. Checksums are recalculated by hand in WinOLS5.
Flashing the Bosch MEV17.4.2 takes 25-30 minutes in OBD mode or ~60 minutes on Bench. Once the file is received, CHIPOK processes it in 5-30 minutes.
The cost of flashing the Bosch MEV17.4.2 is calculated in the price calculator: you select options (Stage 1/2, DPF off, EGR off, AdBlue off, DTC off, etc.) and the final price is capped by the package Max Price. Paid with credits (1 cr = 1 €), no subscriptions.