Mercedes SL 2012 to 2015 SL 550 remap
Standard this engine makes 435hp and 700Nm. Our STAGE 1 file takes it to 500hp and 850Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 435hp
- Remapped 500hp
- Standard 700Nm
- Remapped 850Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the SL 550
The Mercedes SL 2012 to 2015 SL 550 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 2012 to 2015, the full SL range, or everything we do for Mercedes.
Other engines on this SL
2012 to 2015 cars.
Similar power, other makes
Cars running about the same standard output, for comparison.
Other SL generations
Book your SL
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.