Toyota YARIS - 2017
119.8 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Toyota YARIS, model year 2017.
Sample size: 27,128 cars, 55,000 tests and 65,871 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: 27,128 cars
The 2017 Toyota Yaris has an overall defect rate of 120 defects per 100 vehicles, which is notably lower than the average of 134 defects per 100 vehicles, marking a 10.5% improvement. The model shows an increase in defects as mileage rises, particularly in the higher mileage brackets, yet it consistently performs better in critical areas, such as brakes, steering, and body structure. For instance, the Yaris experiences 20.9% fewer brake-related defects and an impressive 92% fewer steering issues compared to the average car of the same year. Overall, the Yaris demonstrates reliability across multiple defect categories, making it a strong contender in its segment.
Cars by mileage segment
Total: 27,128 cars
Categories
Brakes
▲ 22.3% better
56.3 faults / 100 tests
Year avg: 72.5 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brake lining or pad: worn below 1.5mm
- Brake lining or pad: worn below 1.5mm
- Excessive fluctuation in brake effort through each wheel revolution
Steering
▲ 92.9% better
0.4 faults / 100 tests
Year avg: 5.6 / 100 tests
- A steering ball joint: with excessive wear or free play
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- Steering linkage retaining or locking device missing or ineffective
Visibility
▲ 16.6% better
12.1 faults / 100 tests
Year avg: 14.5 / 100 tests
- Wiper blade: defective
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Obligatory mirror or device: slightly damaged or loose
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 4.4% better
19.5 faults / 100 tests
Year avg: 20.4 / 100 tests
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- A lens defective: which has no effect on emitted light
- The aim of a headlamp is not within limits laid down in the requirements
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
Wheels & Suspension
▼ 3.3% worse
147.8 faults / 100 tests
Year avg: 143.1 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A shock absorber damaged … or showing signs of severe leakage
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A wheel bearing: excessively rough
Body/Structure
▲ 80.0% better
1.4 faults / 100 tests
Year avg: 7.0 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
- Bumper: insecure or with damage likely to cause injury when grazed or contacted
- A transmission shaft constant velocity joint boot: severely deteriorated
- Exhaust system has a major leak or is insecure
Equipment
▲ 55.6% better
1.2 faults / 100 tests
Year avg: 2.7 / 100 tests
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Seat belt buckle missing, damaged or not functioning as intended
- Seat belt not functioning as intended or of an incorrect type
- A seat belt:
- A seat belt: or flexible stalk damaged
Other
▲ 91.1% better
0.8 faults / 100 tests
Year avg: 9.0 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Engine MIL inoperative or indicating a malfunction
- Any part of the noise suppression system: insecure
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Emissions test unable to be completed
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: 11,864
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 10,341
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 7,426
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 4,869
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 3,022
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 2,398
A wheel bearing: excessively rough
ADVISORY
Occurrences: 1,823
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 1,810
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,732
A wheel bearing: excessively rough
FAIL
Occurrences: 1,582
Serious faults (Top 10)
A wheel bearing: excessively rough
FAIL
Occurrences: 1,582
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 755
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 734
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 585
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 575
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 549
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 429
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 392
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 368
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 301