Petrol

Smart ForFour 453 2014 onwards 1.0 remap

Standard this engine makes 71hp and 91Nm. Our STAGE 1 file takes it to 79hp and 105Nm.

+8horsepower
+14newton metres
1stage available

Where the power arrives

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

Power before and after
0214364851,0002,0753,1254,2005,2756,325 RPM 0214364851,0002,7004,4256,125hp RPM
  • Standard 71hp
  • Remapped 79hp
Torque before and after
02857851131,0002,0753,1254,2005,2756,325 RPM 02857851131,0002,7004,4256,125Nm RPM
  • Standard 91Nm
  • Remapped 105Nm

Stages for this engine

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

Every figure for the 1.0

FilePowerGainTorqueGainPrice
Standard71hpn/a91Nmn/an/a
STAGE 179hpup 8105Nmup 14£460

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

Remapping the 1.0

The Smart ForFour 453 2014 onwards 1.0 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 453 2014 onwards, the full ForFour range, or everything we do for Smart.

Other engines on this ForFour

453 2014 onwards cars.

Other ForFour generations

Book your ForFour

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.