1.0 VVT-i (1KR-FE)
2005–2014 · petrol · 998cc · 68hp
Engine codes: 1KR-FE
Reliability, common problems and owner reviews for the Toyota Aygo 1.0 VVT-i (1KR-FE). Check this before you buy used.
The 1.0 three-cylinder 1KR-FE is the same award-winning, chain-driven little engine shared with the Peugeot 107, Citroën C1 and Toyota Yaris — simple, frugal and with a strong reliability record. It's slow and buzzy on the motorway and very-high-mileage cars can use a little oil, but there are no design vices. For cheap, dependable city motoring it's one of the safest engines you can buy.
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
Can use a little oil 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 — test for your use
- ☐Check oil level (high-mile cars)
- ☐Shared with 107/C1/Yaris — proven engine
Frequently asked questions
Is the Toyota Aygo 1.0 VVT-i (1KR-FE) reliable?
Reliable — The 1.0 three-cylinder 1KR-FE is the same award-winning, chain-driven little engine shared with the Peugeot 107, Citroën C1 and Toyota Yaris — simple, frugal and with a strong reliability record. It's slow and buzzy on the motorway and very-high-mileage cars can use a little oil, but there are no design vices. For cheap, dependable city motoring it's one of the safest engines you can buy.
What are the common problems and reviews for the Toyota Aygo 1.0 VVT-i (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 Toyota Aygo 1.0 VVT-i (1KR-FE) worth buying?
Minor issues only, easy to maintain, no design flaws. A safe used buy.