Mercedes-Benz X-Class ECU remapping
13 files available

About remapping
This entry covers the Mercedes-Benz X-Class, with 13 files in our catalogue, split between the 250 d 190 hp four-cylinder and the 350 d V6. It is the marque's pickup, built on Nissan Navara underpinnings.
Stage 1 accounts for all 13 files — a completely clean profile — with 3 speed limiter removals and single DPF and AdBlue entries. The ECUs are SID310 and EDC17CP57.
Model highlights
- ›13 Stage 1 files: a completely clean performance profile.
- ›Split between the 250 d 190 hp and the 350 d V6.
- ›The marque's pickup, built on Nissan Navara underpinnings.
- ›ECUs limited to SID310 and EDC17CP57.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 350 CDI | Diesel | 258 hp | 298 hp +40 | — |
| 250D | Diesel | 190 hp | 210 hp +20 | — |
| 220D | Diesel | 163 hp | 189 hp +26 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
250D
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Speed limiter removal
Removal of the factory speed limiter.
AdBlue/SCR off
AdBlue/SCR system management to avoid faults and lock-outs.
DPF off
Particulate filter solution: no more regenerations or blockage warnings.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
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Log in as a professionalFrequently asked questions
How does this differ from the X-Classe entry?
Our history records the model under several designations. Each group covers different units, so it is worth checking both.
What does the 350 d V6 gain?
It is the higher-output version with more absolute torque, and it responds well to a measured map on standard hardware.
Will I notice a difference when towing?
That is exactly where it shows: the extra mid-range torque reduces the need to change down on gradients with a trailer or a full bed.
