Used car guide

2018 Toyota Yaris: common problems and MOT failures

What MOT testers find on the Toyota Yaris first registered in 2018: we looked at the 28,045 MOTs these cars had during 2025. Plus known faults and what to look at before you buy one.

28,045MOTs of 2018 cars, done in 2025
84%pass first time (all 2018 cars: 81%)
5,400typical miles a year
17.3×the usual rate for wheel bearings

What goes wrong more than usual on a 2018 Toyota Yaris?

Parts flagged at MOT more often on the 2018 Toyota Yaris than on all cars registered in 2018.

  • Wheel bearings17.3× usual
    Toyota Yaris
    6.9% All 2018 cars
    0.4%

    Failed outright at MOT: 3.5%, against 0.1% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £120–£300 (one bearing) ClickMechanic

    At the viewing: Listen for a hum or growl that changes as you steer at speed.

  • Side repeaters4× usual
    Toyota Yaris
    2% All 2018 cars
    0.5%

    Failed outright at MOT: 1.4%, against 0.3% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

Better than most

Brake pads: 4.4% here, against 11% of all 2018 cars.

Common 2018 Toyota Yaris MOT failures and advisories

The share of 2018 Toyota Yaris MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    28% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Brakes
    15% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Lights and electrics
    14% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Suspension
    9% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Wipers, windscreen and mirrors
    5% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Seats and seatbelts
    2% of testsRough price £80–£250

    At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

Known faults on the 2018 Toyota Yaris

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • CVT automatic

    Automatic (not hybrid)

    The Multidrive automatic is rated as less reliable than the manual.

    At the viewing: If it’s an automatic, check it drives smoothly from a standstill and at low speed.

    Source: Auto Express: used Toyota Yaris Mk3 review

  • Corrosion behind the number plate

    The rear number plate trim can make the tailgate corrode.

    At the viewing: Look closely around the rear number plate.

    Source: Auto Express: used Toyota Yaris Mk3 review

Questions to ask the seller before buying a 2018 Toyota Yaris

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the wheel bearings? (Flagged at MOT 17.3× as often on the 2018 Toyota Yaris as on other cars the same age.)
  2. Any recent work on the side repeaters? (Flagged at MOT 4× as often on the 2018 Toyota Yaris as on other cars the same age.)
  3. Can I see the service history and receipts for any big jobs?

Looking at a Toyota Yaris?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Toyota Yaris compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
20231,164Tyres 12%
202221,996Tyres 20%
202123,784Tyres 24%
202020,644Tyres 24%
201928,089Tyres 28%
201726,889Tyres 27%
201628,573Tyres 28%
201530,843Tyres 29%
201429,196Tyres 29%
201328,986Tyres 30%
201227,340Suspension 34%
201115,926Suspension 35%
201018,149Suspension 40%
200923,840Suspension 40%
200821,086Suspension 48%
200719,296Suspension 48%
200615,515Lights and electrics 48%
200514,375Suspension 50%
200411,481Suspension 52%
20039,686Suspension 53%
20027,463Suspension 56%
20015,863Suspension 60%
20002,823Suspension 61%
1999823Suspension 63%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2025, counting the MOTs of Toyota Yaris cars first registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score