BMW 5-Series E60 2003 to 2010 523i remap
Standard this engine makes 177hp and 230Nm. Our STAGE 1 file takes it to 194hp and 250Nm.
Where the power arrives
Power and torque through the rev range, on the STAGE 1 file.
- Standard 177hp
- Remapped 194hp
- Standard 230Nm
- Remapped 250Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Remapping the 523i
The BMW 5-Series E60 2003 to 2010 523i 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 E60 2003 to 2010, the full 5-Series range, or everything we do for BMW.
Other engines on this 5-Series
E60 2003 to 2010 cars.
- 520d150hp standardDiesel
- 520d (06/2008 -> ...)163hp standardDiesel
- 520d (... -> 05/2008)163hp standardDiesel
- 525d163hp standardDiesel
- 520d 177hp standardDiesel
- 525d 177hp standardDiesel
- 525d197hp standardDiesel
- 530d211hp standardDiesel
- 530d218hp standardDiesel
- 530d231hp standardDiesel
- 530d235hp standardDiesel
- 530d245hp standardDiesel
- 535d272hp standardDiesel
- 535d286hp standardDiesel
- 520i163hp standardPetrol
- 525i192hp standardPetrol
- 525i - N52218hp standardPetrol
- 525i - N53218hp standardPetrol
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.