BMW 4-Series F32/33 2013 onwards 425d ECO
An economy file for the 425d. Torque goes to 500Nm, which is what makes it easier to drive without revving.
Where the gain arrives
Standard against ECO through the rev range.
- Standard 218hp
- Standard 450Nm
- Remapped 500Nm
Standard against ECO
| Measure | Standard | After | Gain |
|---|---|---|---|
| Power | 218hp | n/a | n/a |
| Torque | 450Nm | 500Nm | up 50 |
No new power figure is published for an economy file. It is written for torque and drivability, not peak output.
Other files for this engine
All written for the 425d specifically.
What ECO involves
This one is aimed at running costs and how the car drives day to day. Torque comes in earlier and more evenly, so it pulls without needing revs. Driven sensibly it will usually give back a little on fuel. If you are after outright power, look at the other files above.
It takes most of a day. We keep your original file, so it can go back to standard at any point. Figures here are for a healthy 425d, and we check the car over before writing to it.
See the full 425d page for every file and figure, the other engines on this 4-Series, or all BMW remapping.
Book your 4-Series ECO
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.