Mercedes C350 CDI Stage 1 & Gearbox Tune

Mercedes C350 CDI Stage 1 Remap & Gearbox Tune

This Mercedes-Benz C350 CDI received a custom Stage 1 ECU remap alongside a VGSX-NAG2 gearbox calibration from MTechTuning.

Stock Power — 265 hp / 620 Nm

Stage 1 Power — 295 hp / 700 Nm

Gains — +30 hp / +80 Nm

The OM642 3.0 V6 diesel engine responds extremely well to Stage 1 tuning, offering stronger mid-range performance, improved acceleration, and smoother power delivery throughout the rev range.

VGSX-NAG2 Gearbox Tune

To support the increased engine torque, the gearbox software was also recalibrated with:

Raised clutch clamping pressure

Increased clutch torque limiters

Faster gear changes overall

Higher maximum clamping force during launch

Quicker manual mode response

The result is a more responsive and controlled driving experience with smoother, faster shifts under acceleration.

Optional Software Add-Ons

Available add-ons include:

Speed limiter removal

EGR solution

Dealer-Level Diagnostics Included

All tuning work includes advanced dealer-level diagnostics before and after programming to ensure the vehicle is operating correctly throughout the process.

Fully Mobile Mercedes Remapping Service

MTechTuning provides fully mobile ECU remapping and gearbox tuning across North Somerset & South Wales. We can carry out tuning at your home or workplace with no additional travel charge.

Areas covered include:

Bristol

Weston-super-Mare

Cardiff

Newport

North Somerset

South Wales

Why Tune a Mercedes C350 CDI?

A Stage 1 remap on the Mercedes C350 CDI improves:

Mid-range pulling power

Overtaking performance

Gearbox response

Overall drivability

The factory hardware on the OM642 platform comfortably supports Stage 1 power levels, making it one of the most popular diesel Mercedes engines for tuning.

Looking for Mercedes C350 CDI Tuning?

Use the Instant BHP Checker at MTechTuning to check available tuning options for your vehicle.