C1
1 generation · Select a generation to see engines
Which Citroen C1 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Citroen C1 engine is the most reliable?
1.0 (1KR-FE) — Reliable verdict. The C1's 1.0 three-cylinder is the Toyota 1KR-FE — the same award-winning, chain-driven engine shared with the Aygo, Peugeot 107 and Toyota Yaris. Simple, frugal and dependable; slow and buzzy at speed, with only mild oil use at very high mileage. A safe, cheap-to-run city engine — one of the best small units of its era.
Which Citroen C1 engines should you avoid?
None of the Citroen C1 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Citroen C1 problems?
The most commonly reported problems across all Citroen C1 generations and engines: EGR / injectors, Water pump coolant weep, Mild oil use (high miles), Engine mount / 3-cyl vibration, Oil consumption if service intervals were stretched.