1.0 (1KR-FE)
2005–2014 · petrol · 998cc · 68hp
Engine codes: 1KR-FE
Reliability, common problems and owner reviews for the Citroen C1 1.0 (1KR-FE). Check this before you buy used.
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.
Same engine, other cars
This is the same physical engine (1KR-FE) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
A little oil use at very high mileage.
Fix / Workaround: Check oil regularly; top up.
Repair cost: €0–€100
Typically appears after: 150,000 km
Worn mounts amplify three-cylinder thrum.
Fix / Workaround: Replace mounts.
Repair cost: €80–€250
Mileage Thresholds
After 200,000 km: Reaches high miles easily.
Pre-Purchase Checklist
- ☐Slow on motorways
- ☐Check oil level (high-mile cars)
- ☐Shared with Aygo/107/Yaris
Frequently asked questions
Is the Citroen C1 1.0 (1KR-FE) reliable?
Reliable — 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.
What are the common problems and reviews for the Citroen C1 1.0 (1KR-FE)?
The most commonly reported problems: Mild oil use (high miles), Engine mount / 3-cyl vibration.
Is a used Citroen C1 1.0 (1KR-FE) worth buying?
Minor issues only, easy to maintain, no design flaws. A safe used buy.