ECO

BMW 5-Series F10 2010 to 2016 520i ECO

An economy file for the 520i. Torque goes to 420Nm, which is what makes it easier to drive without revving.

+150newton metres
£520from

Where the gain arrives

Standard against ECO through the rev range.

Power curve
050991491991,0001,9252,8753,8004,7255,675 RPM 050991491991,0002,5004,0005,475hp RPM
  • Standard 184hp
Torque before and after
01132273404541,0001,9252,8753,8004,7255,675 RPM 01132273404541,0002,5004,0005,475Nm RPM
  • Standard 270Nm
  • Remapped 420Nm

Standard against ECO

MeasureStandardAfterGain
Power184hpn/an/a
Torque270Nm420Nmup 150

No new power figure is published for an economy file. It is written for torque and drivability, not peak output.

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 520i, and we check the car over before writing to it.

See the full 520i page for every file and figure, the other engines on this 5-Series, or all BMW remapping.

Book your 5-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.