Volvo S40/v40 1.8i 125(-2004)
ECU Tuning in Sussex
Volvo S40/v40 1.8i 125(-2004) in Sussex. 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
Volvo S40/v40 1.8i 125(-2004): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+15 bhp · +12%- Standard125 bhp
- Remapped140 bhp
Torque
+30 Nm · +18%- Standard165 Nm
- Remapped195 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
Out of the box the Volvo S40/v40 1.8i 125(-2004) gives 125 bhp and 165 Nm. Remapped in Sussex, we record 140 bhp and 195 Nm, so 15 bhp and 30 Nm more, or 12% and 18% respectively.
These are indicative figures for a petrol Volvo S40/V40 in good health. Your own results depend on the condition of the car.
Volvo S40/v40 1.8i 125(-2004) remap figures
- Fuel: Petrol
- Standard power: 125 bhp, remapped: 140 bhp (+15 bhp, +12%)
- Standard torque: 165 Nm, remapped: 195 Nm (+30 Nm, +18%)
- Service: stage 1 ECU remap, fully dyno tested
How ECU tuning works on a petrol Volvo S40/V40
Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.
How the Volvo S40/v40 1.8i 125(-2004) compares
Of the 6 petrol S40/V40 engines in our data, this one comes 6th for power gain, which is 18 bhp below the S40/V40 petrol average of 33 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 15 bhp and 30 Nm sits below that benchmark.
Remapping your Volvo S40/V40 in Sussex
Remap Experts Sussex is part of the UK-wide Remap Experts network. We regularly work with drivers in Lewes, Rye, Worthing, Newhaven and Horsham and nearby areas of the South East.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Eastbourne, Crawley and Surrey, those neighbouring Remap Experts sites can help too.

Ready for ECU tuning on your Volvo S40/V40 in Sussex?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Volvo S40/V40
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