Bosch control unit — found on BMW, MG, Land-Rover and 1 more brands (24 modifications). On the Bosch DDE4.0, CHIPOK performs Stage 1 — power tuning, software removal of the diesel particulate filter · EGR, disabling the intake flaps, hard rev cut and DTC removal, return to stock. Flashing is done via KESS3 / Autotuner / CMD Flash / FGTech Galletto.
The Bosch DDE4.0 ECU is fitted to 24 engines in the CHIPOK database across 4 brands. Top: BMW (16), MG (4), Land-Rover (2), Mini (2).
The Bosch DDE4.0 ECU supports: STAGE 1, HARD CUT LIMIT, CHECK STOCK OR NOT, DPF OFF, DTC OFF, FLAPS OFF, TVA OFF, EGR OFF, RESET TO STOCK. Checksums are recalculated on the engineer's side in WinOLS5.
The Bosch DDE4.0 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 diesel Bosch DDE4.0 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.
A Bosch DDE4.0 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 DDE4.0 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 DDE4.0 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.