Mercedes-Benz Trucks Atego 1998> 823 231bhp remap figures
The Mercedes-Benz Trucks Atego 823 231bhp (1998>) is a diesel 6.4L model making 231bhp and 809Nm as standard. After a Stage 1 ECU remap we expect 270bhp and 935Nm - up to 39bhp and 126Nm more than stock.
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 | 231 bhp | 270 bhp | +39 bhp |
| Torque | 809 Nm | 935 Nm | +126 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 231 bhp | 809 Nm | |
| Stage 1Maximum software-only performance | 270 bhp | 935 Nm | +39 bhp +126 Nm |
| Stage 1 EcoPerformance with economy in mind | 260 bhp | 925 Nm | +29 bhp +116 Nm |
| Eco mapEconomy first | 257 bhp | 919 Nm | +26 bhp +110 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 Atego
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.
This car is listed with a Temic engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 Trucks Atego 823 231bhp?
We expect 270bhp and 935Nm against 231bhp and 809Nm as standard: up to +39bhp and +126Nm. 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 Trucks Atego 823 231bhp?
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: 260bhp and 925Nm expected. The Eco map is economy first: 257bhp and 919Nm. Both still sit above the standard 231bhp and 809Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
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All diesel Atego variants · Atego 1998> overview · All Mercedes-Benz Trucks figures