Considering an ECU remap for your Citroën C4 2.0 HDi 138hp? A Stage 1 remap can take this 2004 - 2010 diesel engine from 138 BHP to 165 BHP and from 320 Nm to 380 Nm of torque (turbocharged). This engine scores 7/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Citroën C4 can achieve.
The Citroën C4 2.0 HDi 138hp is a 2.0L turbocharged diesel engine producing 138 BHP and 320 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 165 BHP and 380 Nm — a gain of around 27 BHP (20%) and 60 Nm (19%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 1.6 HDi 16V 90hp | 90 → 115 | +25 | 215 → 260 | +45 | Good (7.5/10) |
| 1.6 HDi 16V 110hp | 110 → 140 | +30 | 240 → 330 | +90 | Excellent (8/10) |
| 1.6i 16v 110hp | 110 → 120 | +10 | 147 → 165 | +18 | Moderate (4.5/10) |
| 1.6 VTi 120hp | 120 → 130 | +10 | 160 → 180 | +20 | Moderate (4.5/10) |
| 2.0i 16v 138hp | 138 → 148 | +10 | 190 → 210 | +20 | Moderate (4/10) |
| 1.6 THP 150hp | 150 → 185 | +35 | 240 → 300 | +60 | Good (7.5/10) |
| 2.0i 16v vts 180hp | 180 → 194 | +14 | 202 → 228 | +26 | Moderate (4.5/10) |
Get a personalised remap quote for your Citroën C4. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
