Bosch BMS46 — Bosch petrol ECU for BMW (naturally aspirated M/N engines of the '90s to mid-2000s). Found only on BMW — one modification in our database. Available tuning options: Stage 1 calibration, disabling DPF/FAP / EGR recirculation, removing the swirl-flap logic, Hardcut and software fault-code clearing, return to the original firmware. Reading and writing via KESS3, MPPS V21, PCMflash, BFlash.
The Bosch BMS46 is used across 1 brand: BMW (1). 1 engine in total in the database.
On the Bosch BMS46 the following are available: STAGE 1, HARD CUT LIMIT, DPF OFF, DTC OFF, FLAPS OFF, TVA OFF, EGR OFF, RESET TO STOCK. All options combine in the calculator with the package Max Price cap.
To flash the Bosch BMS46 the following is used: KESS3, Autotuner, MPPS, KTAG, CMD Flash, Trasdata, MagicMotorSport. CHIPOK accepts .bin/.hex/.ori from any of the listed programmers.
Stage 1 on the petrol Bosch BMS46 reprograms ignition timing, lambda target, boost target and wastegate duty (on turbo), throttle response, VANOS/VVT phase, torque limiter.
Bosch BMS46 calibration requires a full read of the unit — bin/hex/ori. Programmers: KESS3, Autotuner, MPPS, KTAG. Checksums — on the engineer's side.
Reading and writing over OBD take 25-30 minutes. Bench reading requires opening the unit — about 60 minutes. Remote processing of a Bosch BMS46 file at CHIPOK — 5-30 minutes.
The price of Bosch BMS46 calibration depends on the selected options: Stage 1/2, DPF/EGR/AdBlue off, DTC off. The Max Price cap limits the package total. Paid with CHIPOK credits (1 cr = 1 €).