Mercedes C220d Remap

The Mercedes C220d is a popular executive saloon for company car users and high-mileage private drivers, and the OM654 diesel engine responds very well to ECU remapping. A Stage 1 remap improves both economy and performance, making the C220d a more capable and rewarding daily driver. AutoCleanse remaps C220ds from our Totnes workshop and via mobile across Devon.

Diagnostic check included
Mobile service available across Devon
Safe, proven limits

Performance Gains

Mercedes C220d Engine Options

2.0d OM654 194 (W205/W206)

+up to 12% MPG
Power (BHP)
194bhp
240bhp
Torque (Nm)
400Nm
470Nm

2.1d OM651 170 (W204)

+up to 12% MPG
Power (BHP)
170bhp
210bhp
Torque (Nm)
350Nm
420Nm

Our Process

Professional ECU Tuning in Devon

Every remap we perform includes a full pre-tune diagnostic check to ensure your Mercedes is healthy before we start. We don't flash generic files - we use safe, proven calibrations tailored to your engine's specific hardware.

Full initial OBD diagnostic scan
Battery stabilization during flash
Safe limits for engine and gearbox
Post-remap test drive and data logging
Mobile service available across Devon

Mobile Remapping Available

We cover the entirety of Devon. We can remap your Mercedes C220d at your home, workplace, or driveway, providing the same high-quality service as you'd receive in our workshop.

FAQ

Mercedes C220d Remapping Questions

The OM654 194 typically gains around 45bhp and 70Nm at Stage 1, reaching approximately 240bhp and 470Nm. Combined with the 9G-Tronic gearbox, the C-Class becomes notably more responsive and relaxed at motorway speeds.

Yes - particularly for motorway users. The improved torque means the engine works less hard at cruise, and the 9G gearbox changes up earlier. MPG improvements of 10–12% are typical for regular long-distance drivers.

The OM654 is Mercedes' modern modular diesel and has a solid tuning track record. It responds well at Stage 1 and is a reliable, well-engineered engine that handles the extra power without concern.

If within warranty, remapping may affect Mercedes' obligation to cover drivetrain faults. We advise checking your warranty status before proceeding. For out-of-warranty vehicles, this is not a concern.

Yes - the remap is to the engine ECU, which is identical across saloon and estate variants. The C220d Estate responds identically to the saloon.

Ready to upgrade?

Transform Your Mercedes Today.

Book your C220 in for a Stage 1 ECU remap. Choose between a workshop visit or a mobile appointment across Devon.

Safe, tested calibrations for long-term reliability