Mercedes-Benz S Class (W220) 1999-2005 S320 CDI 197bhp remap figures
Stock, this 1999-2005 Mercedes-Benz S Class diesel (3.2L) produces 197bhp and 471Nm. Our expected figures for a Stage 1 remap are 246bhp and 545Nm, an expected gain of up to 49bhp and 74Nm.
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 | 197 bhp | 246 bhp | +49 bhp |
| Torque | 471 Nm | 545 Nm | +74 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 197 bhp | 471 Nm | |
| Stage 1Maximum software-only performance | 246 bhp | 545 Nm | +49 bhp +74 Nm |
| Stage 1 EcoPerformance with economy in mind | 234 bhp | 539 Nm | +37 bhp +68 Nm |
| Eco mapEconomy first | 230 bhp | 535 Nm | +33 bhp +64 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 S 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.
The ECU recorded for this variant is a Bosch EDC15C6. 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 S Class S320 CDI 197bhp?
We expect 246bhp and 545Nm against 197bhp and 471Nm as standard: up to +49bhp and +74Nm. 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 S Class S320 CDI 197bhp?
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: 234bhp and 539Nm expected. The Eco map is economy first: 230bhp and 535Nm. Both still sit above the standard 197bhp and 471Nm.
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 S Class figures
Other diesel variants
All diesel S Class (W220) variants · S Class (W220) 1999-2005 overview · All Mercedes-Benz figures