Citroen C4 HDi 1.6 109
ECU Tuning in Hull
Citroen C4 HDi 1.6 109 in Hull. 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
Citroen C4 HDi 1.6 109: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+33 bhp · +30%- Standard109 bhp
- Remapped142 bhp
Torque
+65 Nm · +27%- Standard240 Nm
- Remapped305 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 Citroen C4 HDi 1.6 109 gives 109 bhp and 240 Nm. Remapped in Hull, we record 142 bhp and 305 Nm, so 33 bhp and 65 Nm more, or 30% and 27% respectively.
These are indicative figures for a petrol Citroen C4 in good health. Your own results depend on the condition of the car.
Citroen C4 HDi 1.6 109 power and torque after remapping
- Fuel: Petrol
- Standard power: 109 bhp, remapped: 142 bhp (+33 bhp, +30%)
- Standard torque: 240 Nm, remapped: 305 Nm (+65 Nm, +27%)
- Service: stage 1 ECU remap, fully dyno tested
How ECU tuning works on a petrol Citroen C4
On a petrol car the ECU controls fuelling, spark timing and any turbo boost. A remap re-calibrates those maps within safe limits, so the car responds more eagerly and pulls harder through the rev range.
For reference, HDi is the PSA name for its high-pressure common-rail diesel engines.
How the Citroen C4 HDi 1.6 109 compares
Ranked by power gain against the other petrol C4 engines (3 in total), the HDi 1.6 109 is 2nd, 3 bhp above the C4 petrol average of 30 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 33 bhp and 65 Nm sits at or above that benchmark.
Book engine tuning for your Citroen C4 in Hull
Based around Hull, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Hornsea, Pocklington, Market Weighton, Hull and Goole and nearby areas of Yorkshire & Humber.
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 Doncaster, Leeds and Lincolnshire, those neighbouring Remap Experts sites can help too.

Want these figures on your Citroen C4 HDi 1.6 109?
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your Citroen C4
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.
Same model
Other C4 engines
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