Engine

Mercedes S W217/222 2014 onwards S 400 Hybrid remap

Standard this engine makes 333hp and 370Nm. Our STAGE 1 file takes it to 380hp and 450Nm.

+47horsepower
+80newton metres
2stages available

Where the power arrives

Power and torque through the rev range, on the STAGE 1 file.

Power before and after
01032053084101,0002,2253,4504,6755,9007,150 RPM 01032053084101,0002,9754,9256,900hp RPM
  • Standard 333hp
  • Remapped 380hp
Torque before and after
01222433654861,0002,2253,4504,6755,9007,150 RPM 01222433654861,0002,9754,9256,900Nm RPM
  • Standard 370Nm
  • Remapped 450Nm

Stages for this engine

Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.

Every figure for the S 400 Hybrid

FilePowerGainTorqueGainPrice
Standard333hpn/a370Nmn/an/a
ECOn/an/a450Nmup 80£690
STAGE 1380hpup 47450Nmup 80£790

Economy files show no new power figure because they are written for torque and drivability rather than peak output.

Remapping the S 400 Hybrid

The Mercedes S W217/222 2014 onwards S 400 Hybrid 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.

On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.

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 W217/222 2014 onwards, the full S range, or everything we do for Mercedes.

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.