Mercedes-Benz X Class 2018> 250D 190bhp remap figures
Stock, this 2018> Mercedes-Benz X Class diesel (2.3L) produces 190bhp and 450Nm. Our expected figures for a Stage 1 remap are 227bhp and 490Nm, an expected gain of up to 37bhp and 40Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 190 bhp | 227 bhp | +37 bhp |
| Torque | 450 Nm | 490 Nm | +40 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 190 bhp | 450 Nm | |
| Stage 1Maximum software-only performance | 227 bhp | 490 Nm | +37 bhp +40 Nm |
| Stage 1 EcoPerformance with economy in mind | 218 bhp | 487 Nm | +28 bhp +37 Nm |
| Eco mapEconomy first | 215 bhp | 485 Nm | +25 bhp +35 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your X Class
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
Engine management is by a Continental SID310 unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Mercedes-Benz X Class 250D 190bhp?
We expect 227bhp and 490Nm against 190bhp and 450Nm as standard: up to +37bhp and +40Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Mercedes-Benz X Class 250D 190bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 218bhp and 487Nm expected. The Eco map is economy first: 215bhp and 485Nm. Both still sit above the standard 190bhp and 450Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Mercedes-Benz X Class figures
Other diesel variants
All diesel X Class variants · X Class 2018> overview · All Mercedes-Benz figures