BMW 5-Series E39 1995 to 2003 520d remap
Standard this engine makes 125hp and 280Nm. Our STAGE 1 file takes it to 165hp and 360Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 125hp
- Remapped 165hp
- Standard 280Nm
- Remapped 360Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the 520d
The BMW 5-Series E39 1995 to 2003 520d 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 E39 1995 to 2003, the full 5-Series range, or everything we do for BMW.
Other engines on this 5-Series
E39 1995 to 2003 cars.
Similar power, other makes
Cars running about the same standard output, for comparison.
Other 5-Series generations
Book your 5-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.