Citroën C4 III (2020 – 2025)
Reliability score : 6.1/10
The third-generation Citroën C4 (code name C41) marks a deliberate stylistic break, blending compact sedan, coupe, and SUV design cues. Based on the Stellantis group's CMP/e-CMP platform (shared with the Peugeot 208/2008), it emphasizes comfort with its progressive hydraulic bump stop suspension (Advanced Comfort). Although demand for diesel is plummeting in Europe, Citroën has kept the 1.5 BlueHDi engine in its catalog for high-mileage drivers. However, this generation inherits Stellantis thermal powertrains (1.2 PureTech and 1.5 BlueHDi) which have experienced significant reliability issues, making the choice of engine and production year absolutely crucial.
✅ Strengths
- Exceptional ride comfort (hydraulic bump stop suspension)
- Very refined sound insulation for the category
- Frugal fuel consumption of the 1.5 BlueHDi on highways (often under 5 L/100 km)
- Retained physical ergonomics (real knobs for air conditioning)
- Original and polarizing design that stands out
Common issues
Dysfonctionnement du système AdBlue (pompe, injecteur, réservoir)
Medium
🔧 60 000 – 120 000 km
💶 600 – 1 500 €
Utiliser AdBlue de qualité et éviter de rouler réservoir vide.
Encrassement du FAP (Filtre à Particules)
Medium
🔧 50 000 – 150 000 km
💶 400 – 1 200 €
Effectuer des trajets longs régulièrement pour favoriser la régénération.
Encrassement de la vanne EGR
Medium
🔧 80 000 – 150 000 km
💶 300 – 800 €
Une conduite souple et un carburant de qualité peuvent limiter l'encrassement.
Estimated maintenance costs
| Oil change |
£70 – 130 |
| Timing belt |
£500 – 1 000 |
| Clutch |
£750 – 1 400 |
| Complete brakes |
£220 – 480 |
| Estimated annual budget |
£550 – 1 100 |
Indicative estimates (independent garage, UK market). Prices vary by region and year.