BMW 118d Remap

The BMW 118d is an ideal candidate for ECU remapping - it's often driven by owners who want economy and refinement, and a Stage 1 remap delivers improved MPG alongside a useful power boost that makes the 1 Series genuinely responsive on A-roads and motorways. The gains are proportionally significant on this smaller engine. AutoCleanse remaps 118ds across Devon from our Totnes workshop and via mobile.

Diagnostic check included
Mobile service available across Devon
Safe, proven limits

Performance Gains

BMW 118d Engine Options

1.5d B37 116 (F20/F40)

+up to 18% MPG
Power (BHP)
116bhp
155bhp
Torque (Nm)
270Nm
330Nm

2.0d B47 150 (F20/F40)

+up to 14% MPG
Power (BHP)
150bhp
192bhp
Torque (Nm)
320Nm
390Nm

Our Process

Professional ECU Tuning in Devon

Every remap we perform includes a full pre-tune diagnostic check to ensure your BMW is healthy before we start. We don't flash generic files - we use safe, proven calibrations tailored to your engine's specific hardware.

Full initial OBD diagnostic scan
Battery stabilization during flash
Safe limits for engine and gearbox
Post-remap test drive and data logging
Mobile service available across Devon

Mobile Remapping Available

We cover the entirety of Devon. We can remap your BMW 118d at your home, workplace, or driveway, providing the same high-quality service as you'd receive in our workshop.

FAQ

BMW 118d Remapping Questions

Yes - especially for drivers covering significant mileage. The MPG improvements are proportionally the largest of any 1 Series remap, and the power gains make the car feel genuinely brisk. The remap often pays for itself in fuel savings within 6–12 months for regular commuters.

Both respond very well. The B47 2.0d generally allows slightly higher gains due to the larger engine. However, the B37 three-cylinder sees excellent proportional improvements and the MPG gains are particularly strong on that engine.

No - Stage 1 remapping works within the safe limits of the engine hardware. The 118d engines are well-proven and handle Stage 1 power levels without concern. Our pre-remap diagnostic ensures we're starting with a healthy engine.

Yes - we carry out full mobile remaps across Devon. We come to your home or workplace with all the equipment needed. There's no need to drive to a workshop.

Yes - the difference is immediately noticeable, particularly in the mid-range. The engine feels more willing, gear changes are less frequent, and the overall driving experience is more relaxed despite being faster. Most customers are pleasantly surprised by how significant the real-world difference is.

Ready to upgrade?

Transform Your BMW Today.

Book your 118d in for a Stage 1 ECU remap. Choose between a workshop visit or a mobile appointment across Devon.

Safe, tested calibrations for long-term reliability