Mercedes S W220 2002 to 2005 S 400 CDI remap
Standard this engine makes 250hp and 560Nm. Our STAGE 1 file takes it to 290hp and 630Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 250hp
- Remapped 290hp
- Standard 560Nm
- Remapped 630Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the S 400 CDI
The Mercedes S W220 2002 to 2005 S 400 CDI runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.
Diesels like this one gain most through the middle of the rev range, which is where you actually drive. It pulls from lower down, holds a gear on a hill, and needs fewer downshifts to overtake. Drive it the same way afterwards and the economy usually improves a little.
Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the W220 2002 to 2005, the full S range, or everything we do for Mercedes.
Other engines on this S
W220 2002 to 2005 cars.
Similar power, other makes
Cars running about the same standard output, for comparison.
Other S generations
Book your S
We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.