BMW · MG1CS003 DME_841H ECU · petrol

BMW 3 SERIES MG1CS003 DME_841H tuning files

Here is what the catalog holds for the BMW 3 SERIES on the MG1CS003 DME_841H. Across the matched variants stock power runs from 275 to 340 HP. There are 2 distinct variants on file for this combination. On this petrol engine the focus is sharper throttle and useful, repeatable gains. Your file is built against the exact ECU software on the car, then operator-verified.

Available solutions

Applicable work for the MG1CS003 DME_841H on this petrol. The available set firms up once the exact engine and software are known.

Engine variants & ECU software

2 distinct variants for the BMW 3 SERIES on the MG1CS003 DME_841H ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
3000 340HP
Engine code
B48B20O0
Controller brand
BOSCH
ECU
MG1CS003 DME_841H
Stock power
340 HP
ECU SW
000030760A1101
ECU HW
0000307200011C
SW upgrade
000034980A1104
Calibration
0000307200011C_000030760A1101_000034980A1104

Variant 2

ECU
Catalog engine
2000 275HP
Controller brand
BOSCH
ECU
MG1CS003 DME_841H
Stock power
275 HP

Related vehicles

Other vehicles built on the MG1CS003 DME_841H 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 MG1CS003 DME_841H?

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 MG1CS003 DME_841H ECU software on this model?

Yes — the BMW 3 SERIES on the MG1CS003 DME_841H 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.

BMW 3 SERIES MG1CS003 DME_841H ECU Tuning Files | TuningBay