Cars / Vans · ECU Remapping

Mercedes C 220 CDI (2.1) 143 hp Tuning (2004–)

Factory specification and Stage 1 remap gains for the Mercedes C 220 CDI (2.1) 143 hp (2004–). A Stage 1 calibration adds 33 BHP and 50 Nm — software only, no hardware modifications required.

2004 - W2032004–DieselECU: Bosch EDC15C6
MeasureStockStage 1Stage 2

Power

BHP

143

176

+33 BHP · +23%

186

+43 BHP · +30%

Torque

Nm

315

365

+50 Nm · +16%

385

+70 Nm · +22%

+33 BHP

Stage 1 power gain

+50 Nm

Stage 1 torque gain

Rolling road

Dyno Graph

Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM). Peak figures match our database exactly.

05010015001002003004001k2k3k4kBHPNmRPM143 bhp176 bhp186 bhp

Hover / touch the graph

Stock: 143 bhp · 315 Nm (peak)

Stage 1: 176 bhp · 365 Nm (peak)

Stage 2: 186 bhp · 385 Nm (peak)

Tuning tool compatibility

This ECU is listed in 4 of 4 manufacturer compatibility databases.

AutoTuner

Supported

ECU: Bosch EDC15C6 · Bosch EDC16C2

OBDBench

Alientech KESS3

Supported

ECU: Bosch EDC16C2

OBDBenchBoot

Magicmotorsport FLEX

Supported

ECU: Bosch EDC15C6

OBDBoot

Dimsport New Genius / New Trasdata

Supported

ECU: Bosch EDC16C2

BenchMy GeniusRapid Fr
Upload a FileRequest a Quote

Existing customers upload their ECU file via the Regal Tuning File Portal. New to Regal? Request a quote first.

About this remap

Mercedes C 220 CDI (2.1) 143 hp Stage 1 — what changes

The Mercedes C 220 CDI (2.1) 143 hp (2004–) leaves the factory at 143 BHP and 315 Nm of torque. Manufacturers deliberately detune this engine to separate it from more expensive variants in the range — a Regal Tuning Stage 1 calibration safely recovers that headroom through the ECU alone: no hardware changes, no dyno risk, fully reversible.

Fuelling, boost pressure, ignition and torque limiters are optimised within the safe tolerances of the 220 CDI (2.1) 143 hp powertrain (diesel). The result is 176 BHP and 365 Nm with factory smoothness, cold-start protection and emissions behaviour retained.

Why Regal Tuning

Verified on the dyno, backed by 20+ years

Every calibration is developed and verified by Regal Tuning on an in-house 4WD dynamometer and proven across a worldwide dealer network. Your file is supplied through the Regal Tuning file portal with full technical support, and the original factory file is always kept so the vehicle can be returned to stock at any time.

Figures shown are for this exact engine variant. Gains depend on vehicle health, fuel quality and conditions — we confirm the expected output for your specific vehicle in writing before work begins.

Compare more vehicles in the Tuning Gains Database

Mercedes C 220 CDI (2.1) 143 hp remap FAQ

How much power does Stage 1 add?

Stage 1 takes the 220 CDI (2.1) 143 hp to 176 BHP and 365 Nm — a gain of 33 BHP and 50 Nm over stock.

Is Stage 1 safe for this engine?

Yes — software-only calibration within the safe mechanical tolerances of the engine, gearbox and drivetrain, developed and verified on our in-house 4WD dyno.

How do I get this remap?

Request a quote with your vehicle details or registration. Existing customers upload their ECU file through the Regal Tuning file portal for a fast turnaround.

20+ years of ECU calibration

Ready to unlock your Mercedes C's real performance?

Tell us your vehicle and registration — we'll confirm support and the exact expected gains for your engine before any work begins.

Request a Quote