Petrol · 2011–2020
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
All about the Toyota Yaris 3All about the 1.0 VVT-i 3-cyl (1KR-FE — Aygo / Aygo X / C1 / 107 / 108) engine
The 1.0 VVT-i 3-cyl (1KR-FE — Aygo / Aygo X / C1 / 107 / 108) engine was fitted to the Toyota Yaris 3 (2011–2020). In the EU that is 11.8 % of all new cars of this generation.
The most expensive known risk is corroded brake lines and rust on older cars (10+ years): it usually appears at 100,000–300,000 km and costs €150–600 to fix.
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
Signs: Coolant level drops, pink or coloured crust around the pump, rising temperature; sometimes a whine
Fix: Replace the water pump and gasket, refill with Toyota-type coolant and bleed; check the level regularly because the system holds little coolant
Signs: Engine light with P0420 or sensor codes, rough idle, failed emissions test
Fix: Read live data and check for exhaust leaks first; replace the upstream sensor before condemning the catalyst
Signs: Scored or lipped discs, vibration or noise when braking; noted at the roadworthiness test.
Fix: Replace discs and pads per axle and clean and grease the caliper slides.
Signs: Rusty brake lines under the car, possibly fluid seepage; surface rust on underbody and body seams; test failure.
Fix: Inspect the lines on a lift and replace corroded sections; treat rust early and protect the underbody.
Signs: Clunk over bumps, car sits lower on one corner, bouncy ride.
Fix: Replace the broken spring or worn dampers in pairs per axle and check the strut top mounts.
Signs: Bulb out, misaligned headlight or faulty rear lamp; a common remark at the roadworthiness test.
Fix: Replace the bulb, check connectors and earth, and adjust the headlight aim.
Signs: No start, or hybrid does not reach READY; electrical warnings after the car stood for a while.
Fix: Test and replace the 12 V battery with the correct type; on short-trip cars charge it regularly.
Signs: Brake fluid warning light, fluid loss, longer pedal travel.
Fix: Check the VIN for the open recall; the dealer retightens the brake line fittings free of charge.
Signs: Airbag warning light on; side and curtain airbags may not deploy in a crash.
Fix: Check the VIN for the open recall; the dealer repairs or replaces the front door airbag sensor harness free of charge.
Signs: No warning; the inflator may rupture or the airbag may not unfold properly in a crash.
Fix: Check the VIN for the open recall; the dealer replaces the inflator or airbag module free of charge.
Signs: Slipping, high bite point
Fix: Replace clutch kit
Typical routine maintenance cost for 100,000 km: €2,200–4,950. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Toyota Yaris 3 with the 1.0 VVT-i 3-cyl (1KR-FE — Aygo / Aygo X / C1 / 107 / 108) engine. The app gives the exact plan for your mileage.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Recalls the manufacturer published in the United Kingdom for this model (19). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
The faults with the highest risk: corroded brake lines and rust on older cars (10+ years) (100,000–300,000 km, €150–600); water pump seal leak (coolant loss) (50,000–150,000 km, €200–450).
Chain.
5W-30 / 0W-20 · API SL/SN · ~3.2 L · every 15,000 km.
1.0 / 1.3 / 1.5T / 1.33 / 1.5 petrol (Toyota KR / NR / M15A)1.33 / 1.6 / 1.8 / 2.0 Dual VVT-i (Toyota NR / ZR)1.5 Hybrid (Toyota 1NZ-FXE / M15A)1.4 D-4D (Toyota 1ND-TV)
Toyota Yaris II 2005–2011Peugeot 107 / 108 2005–2021Citroën C1 2005–2022Toyota Aygo II 2014–2022Toyota Aygo I 2005–2014Toyota Aygo X 2022–
Main sources for the faults of this engine:
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles. How we check the data →
Updated 29/10/2026