MERCEDES · M3.4.2 ECU · petrol

MERCEDES C M3.4.2 tuning files

MERCEDES C on the M3.4.2: matched, calibrated and delivered with care. Stock output across the matched variants spans 150–197 HP. There are 2 distinct variants on file for this combination. It is a petrol platform, tuned for response and clean power delivery. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All C coverage

Available solutions

What we can run on the M3.4.2 for this petrol — the precise options narrow down by engine and software version.

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

Engine variants & ECU software

2 distinct variants for the MERCEDES C on the M3.4.2 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
280 2800 197HP
Controller brand
BOSCH
ECU
M3.4.2
Stock power
197 HP

Variant 2

ECU
Catalog engine
220 2200 150HP
Controller brand
BOSCH
ECU
M3.4.2
Stock power
150 HP

Related vehicles

Other vehicles built on the M3.4.2 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the MERCEDES C on the M3.4.2?

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 M3.4.2 ECU software on this model?

Yes — the MERCEDES C on the M3.4.2 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.

MERCEDES C M3.4.2 ECU Tuning Files | TuningBay