ECO

BMW X4 G02 xDrive 25d ECO

An economy file for the xDrive 25d. Torque goes to 550Nm, which is what makes it easier to drive without revving.

+50newton metres
£550from

Where the gain arrives

Standard against ECO through the rev range.

Power curve
0621251872491,0001,6002,2002,8003,4004,000 RPM 0621251872491,0001,9502,9253,875hp RPM
  • Standard 231hp
Torque before and after
01492974465941,0001,6002,2002,8003,4004,000 RPM 01492974465941,0001,9502,9253,875Nm RPM
  • Standard 500Nm
  • Remapped 550Nm

Standard against ECO

MeasureStandardAfterGain
Power231hpn/an/a
Torque500Nm550Nmup 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 xDrive 25d 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 xDrive 25d, and we check the car over before writing to it.

See the full xDrive 25d page for every file and figure, the other engines on this X4, or all BMW remapping.

Book your X4 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.