BMW 118d 122
ECU Remapping
BMW 118d 122. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
BMW 118d 122: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+36 bhp · +30%- Standard122 bhp
- Remapped158 bhp
Torque
+65 Nm · +23%- Standard280 Nm
- Remapped345 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
ECU remapping for the BMW 118d 122 takes it from 122 to 158 bhp and from 280 to 345 Nm in our stage 1 figures: +36 bhp (30%) and +65 Nm (23%).
The figures above are estimates for a standard, well-maintained BMW 1 Series diesel; they are not a guarantee of any particular result.
BMW 118d 122 power and torque after remapping
- Fuel: Diesel
- Standard power: 122 bhp, remapped: 158 bhp (+36 bhp, +30%)
- Standard torque: 280 Nm, remapped: 345 Nm (+65 Nm, +23%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a diesel BMW 1 Series
The gains from remapping a diesel come from the engine management software rather than new parts: injection, boost and torque limits are re-mapped, which is why torque improves most and why the car often feels easier to drive at lower revs.
How the BMW 118d 122 compares
Of the 5 diesel 1 Series engines in our data, this one comes 4th for power gain, which is 1 bhp below the 1 Series diesel average of 37 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 36 bhp and 65 Nm sits at or above that benchmark.
BMW 1 Series engine tuning
Remap Experts is a UK network of local remapping sites. Use Find a Local Tuner to reach your nearest site and get an exact quote.
Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.

Want these figures on your BMW 118d 122?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your BMW 1 Series
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide