Siemens/Continental MSD81 ECU flashing. Bosch petrol ECU for BMW (naturally aspirated M/N engines of the '90s to mid-2000s). In the CHIPOK database — 22 modifications on BMW and Alpina. Among the available operations: Stage 1/2 calibration, disabling EGR recirculation / AdBlue/SCR / CAT/Lambda / the EVAP system, removing the swirl-flap logic, the Pops & Bangs effect, disabling the speed limiter, software fault-code clearing, return to the original firmware, IMMO Off and cold-start deactivation. Programmers: KESS3, Autotuner, MPPS, KTAG.
The Siemens/Continental MSD81 is used across 2 brands: BMW (20), Alpina (2). 22 engines in total in the database.
On the Siemens/Continental MSD81 the following are available: STAGE 2, COLD START OFF, NOx OFF, EGR OFF, STAGE 1, FLAPS OFF, VMAX OFF, DTC OFF, POP AND BANGS, IMMO OFF. All options combine in the calculator with the package Max Price cap.
To flash the Siemens/Continental MSD81 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 Siemens/Continental MSD81 reprograms ignition timing, lambda target, boost target and wastegate duty (on turbo), throttle response, VANOS/VVT phase, torque limiter.
Siemens/Continental MSD81 calibration requires a full read of the unit — bin/hex/ori. Programmers: KESS3, MPPS V21, PCMflash, BFlash. 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 Siemens/Continental MSD81 file at CHIPOK — 5-30 minutes.
The price of Siemens/Continental MSD81 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 €).