ALPINA · MS43 ECU · petrol

ALPINA B3 MS43 tuning files

Here is what the catalog holds for the ALPINA B3 on the MS43. The matched variants sit between 276 and 305 HP from the factory. Petrol calibration here is about crisp response and a result that holds up day to day. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All B3 coverage

Available solutions

Applicable work for the MS43 on this petrol. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2 Swirl Flaps OffLambda / O2OPF/GPF Off

Engine variants & ECU software

4 distinct variants for the ALPINA B3 on the MS43 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 3000 305HP
Controller brand: SIEMENS
ECU: MS43
Stock power: 305 HP
SW upgrade: O6500345
Calibration: O6500345

Variant 2

ECU

Catalog engine: S 3000 300HP
Engine code: M54B30
Controller brand: SIEMENS
ECU: MS43
Stock power: 300 HP
SW upgrade: O6530245
Calibration: O6530245

Variant 3

ECU

Catalog engine: S 3000 300HP
Controller brand: SIEMENS
ECU: MS43
Stock power: 300 HP
SW upgrade: O6530145
Calibration: O6530145

Variant 4

ECU

Catalog engine: 3.3 3000 276HP
Engine code: M54B30
Controller brand: SIEMENS
ECU: MS43
Stock power: 276 HP
ECU HW: 5WK9 0015
SW upgrade: O6520025
Calibration: O6520025

Related vehicles

Other vehicles built on the MS43 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the ALPINA B3 on the MS43?

Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.

Do you cover the MS43 ECU software on this model?

Yes — the ALPINA B3 on the MS43 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.