1.0 (1KR-FE)
2005–2014 · petrol · 998cc · 68hp
Engine codes: 1KR-FE
Reliability, common problems and owner reviews for the Peugeot 107 1.0 (1KR-FE). Check this before you buy used.
The 107's 1.0 three-cylinder is the Toyota 1KR-FE — the same award-winning, chain-driven engine as the Aygo, Citroën C1 and Toyota Yaris. Simple, frugal and genuinely dependable; slow and a bit buzzy at speed, with only mild oil use at very high mileage. One of the safest, cheapest-to-run city engines on the used market.
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
The water pump develops a slow coolant weep from the shaft seal with age — a known 1KR-FE wear item. Coolant loss is gradual and easy to miss on a car this small; run dry and the alloy engine overheats quickly.
Fix / Workaround: Check the pump weep hole and coolant level at every service; replace the pump at the first sign of crusty residue.
Repair cost: €120–€250
Typically appears after: 100,000 km
Tiny sump (~3.3 L) means stretched oil changes coke the piston rings and the engine starts burning oil. Cared-for examples don't do it; neglected city cars do.
Fix / Workaround: Check oil level on the dipstick monthly; insist on documented short oil-change intervals when buying.
Repair cost: €0–€1200
Typically appears after: 130,000 km
Mileage Thresholds
After 200,000 km: Reaches high miles easily.
After 150,000 km: Watch for water pump weep and the first signs of oil consumption — both are manageable if caught early.
Fault Codes to Scan
Pre-Purchase Checklist
- ☐Slow on motorways
- ☐Check oil level (high-mile cars)
- ☐Shared with Aygo/C1/Yaris
Frequently asked questions
Is the Peugeot 107 1.0 (1KR-FE) reliable?
Reliable — The 107's 1.0 three-cylinder is the Toyota 1KR-FE — the same award-winning, chain-driven engine as the Aygo, Citroën C1 and Toyota Yaris. Simple, frugal and genuinely dependable; slow and a bit buzzy at speed, with only mild oil use at very high mileage. One of the safest, cheapest-to-run city engines on the used market.
What are the common problems and reviews for the Peugeot 107 1.0 (1KR-FE)?
The most commonly reported problems: Mild oil use (high miles), Engine mount / 3-cyl vibration, Water pump coolant weep, Oil consumption if service intervals were stretched.
Is a used Peugeot 107 1.0 (1KR-FE) worth buying?
Minor issues only, easy to maintain, no design flaws. A safe used buy.