BMW 1-Series F20 2011 to 2015 125d remap
Standard this engine makes 211hp and 450Nm. Our STAGE 2 file takes it to 285hp and 520Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 2 file.
- Standard 211hp
- Remapped 285hp
- Standard 450Nm
- Remapped 520Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the 125d
The BMW 1-Series F20 2011 to 2015 125d 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 F20 2011 to 2015, the full 1-Series range, or everything we do for BMW.
Other engines on this 1-Series
F20 2011 to 2015 cars.
- 114d95hp standardDiesel
- 116d116hp standardDiesel
- 118d136hp standardDiesel
- 118d143hp standardDiesel
- 120d163hp standardDiesel
- 120d184hp standardDiesel
- 120d PP200hp standardDiesel
- 125d218hp standardDiesel
- 114i102hp standardPetrol
- 116i136hp standardPetrol
- 118i170hp standardPetrol
- 125i218hp standardPetrol
- 125i MPP238hp standardPetrol
- M135i - 07/13 > '15320hp standardPetrol
- M135i - ... < 07/13320hp standardPetrol
Similar power, other makes
Cars running about the same standard output, for comparison.
Other 1-Series generations
Book your 1-Series
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.