MERCEDES · M3.4.2 ECU · petrol

MERCEDES S M3.4.2 tuning files

The MERCEDES S on the M3.4.2, mapped from stock file to finished result. Across the matched variants stock power runs from 320 to 320 HP. 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.

Available solutions

Solutions that apply to the M3.4.2 on this petrol platform. The exact set depends on the specific engine and software version.

Engine variants & ECU software

1 distinct variant for the MERCEDES S on the M3.4.2 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
500 5000 320HP
Controller brand
BOSCH
ECU
M3.4.2
Stock power
320 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 S 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 S 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 S M3.4.2 ECU Tuning Files | TuningBay