Variant 1
ECU- Catalog engine
- 3000 306HP
- Controller brand
- SIEMENS
- ECU
- MSD81.2
- Stock power
- 306 HP
BMW · MSD81.2 ECU · petrol
BMW 3 SERIES MSD81.2 tuning files
The BMW 3 SERIES on the MSD81.2, mapped from stock file to finished result. The matched variants sit between 170 and 306 HP from the factory. 4 distinct variants are catalogued here. On this petrol engine the focus is sharper throttle and useful, repeatable gains. We match the right calibration to your exact software and validate it before delivery.
Available solutions
What we can run on the MSD81.2 for this petrol — the precise options narrow down by engine and software version.
Engine variants & ECU software
4 distinct variants for the BMW 3 SERIES on the MSD81.2 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 3000 306HP
- Engine code
- N54B30
- Controller brand
- SIEMENS
- ECU
- MSD81.2
- Stock power
- 306 HP
- ECU SW
- 07611358
- ECU HW
- 07611780
- Calibration
- 0044CC0IJC0SIFC1S
Variant 3
ECU- Catalog engine
- 3000 306HP
- Engine code
- N54B30
- Controller brand
- SIEMENS
- ECU
- MSD81.2
- Stock power
- 306 HP
- ECU SW
- 07611358
- ECU HW
- 07611780
Variant 4
ECU- Catalog engine
- 2000 170HP
- Generation
- F3x 12/2011-2015
- Matched gains engine
- 320i EDE 170
- Controller brand
- SIEMENS
- ECU
- MSD81.2
- Stock power
- 170 HP
- Stage 1 power
- 220 HP
- Power increase
- +50 HP (+29%)
- Stock torque
- 250 Nm
- Stage 1 torque
- 310 Nm
- Torque increase
- +60 Nm (+24%)
Related vehicles
Other vehicles built on the MSD81.2 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the BMW 3 SERIES on the MSD81.2?
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 MSD81.2 ECU software on this model?
Yes — the BMW 3 SERIES on the MSD81.2 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.