Toyota YARIS - 2018
105.0 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Toyota YARIS, model year 2018.
Sample size: 28,257 cars, 58,118 tests and 61,017 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 28,257 cars
The 2018 Toyota Yaris has an overall defect rate of 105 per 100 vehicles, which is notably lower than the average of 120 per 100, reflecting a 12.5% improvement. This model performs particularly well in categories such as brakes, steering, body structure, and equipment, with much lower defect rates compared to the average car. Mileage-related trends indicate an increasing defect rate as mileage increases, but the Yaris remains consistent and competitive within its class. Notably, there are no significant standout issues, making this model a reliable choice for potential buyers.
Cars by mileage segment
Total: 28,257 cars
Categories
Brakes
▲ 33.6% better
45.7 faults / 100 tests
Year avg: 68.8 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Excessive fluctuation in brake effort through each wheel revolution
- Brake lining or pad: worn below 1.5mm
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 94.0% better
0.3 faults / 100 tests
Year avg: 5.0 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- A steering ball joint: with excessive wear or free play
- A steering ball joint: with excessive wear or free play
Visibility
▲ 15.8% better
11.7 faults / 100 tests
Year avg: 13.9 / 100 tests
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 6.8% better
16.4 faults / 100 tests
Year avg: 17.6 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- A lens defective: which has no effect on emitted light
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
Wheels & Suspension
▼ 5.3% worse
133.4 faults / 100 tests
Year avg: 126.7 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A wheel bearing: excessively rough
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A wheel bearing: excessively rough
Body/Structure
▲ 84.3% better
0.8 faults / 100 tests
Year avg: 5.1 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- Bumper: insecure or with damage likely to cause injury when grazed or contacted
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 54.5% better
1.0 faults / 100 tests
Year avg: 2.2 / 100 tests
- A seat belt:
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- A seat belt: or flexible stalk damaged
- ESC MIL indicates a system malfunction
Other
▲ 92.9% better
0.5 faults / 100 tests
Year avg: 7.0 / 100 tests
- Any part of the noise suppression system: insecure
- Engine MIL inoperative or indicating a malfunction
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Any part of the noise suppression system: likely to become detached
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 13,078
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 11,874
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 6,705
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 3,467
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 2,395
A wheel bearing: excessively rough
ADVISORY
Occurrences: 1,846
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,617
A wheel bearing: excessively rough
FAIL
Occurrences: 1,571
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 1,254
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 860
Serious faults (Top 10)
A wheel bearing: excessively rough
FAIL
Occurrences: 1,571
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 792
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 663
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 596
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 520
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 495
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 422
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 398
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 316
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 293