Volvo S40/v40 1.8i 125(-2004)
ECU Remapping Chester
Volvo S40/v40 1.8i 125(-2004) in Chester. 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
The Volvo S40/v40 1.8i 125(-2004) produces 125 bhp and 165 Nm of torque as standard. After a stage 1 ECU remap in Chester, our figures show 140 bhp and 195 Nm: a gain of 15 bhp (12%) and 30 Nm (18%).
Treat the numbers as a guide: they are stage 1 estimates for a petrol Volvo S40/V40 in sound condition, and individual cars differ.
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 remapping works on a petrol Volvo S40/V40
Petrol engines are remapped by refining fuelling, ignition timing and, on turbocharged engines, boost control. Done carefully this releases performance the manufacturer left in reserve, giving sharper throttle response and a stronger top end.
Volvo S40/v40 1.8i 125(-2004) against other S40/V40 engines
Among the 6 petrol S40/V40 engines we have figures for, the 1.8i 125(-2004) ranks 6th for power gain, 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.
Book engine remapping for your Volvo S40/V40 in Chester
Whether you live in Chester or nearby, the Chester Remap Experts site is your local route to a quote. We regularly work with drivers in Nantwich, Sandbach, Runcorn, Northwich and Knutsford and nearby areas of the North West.
Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.
If you are closer to Cheshire, Merseyside and Liverpool, those neighbouring Remap Experts sites can help too.

Want these figures on your Volvo S40/v40 1.8i 125(-2004)?
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