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Toyota COROLLA - 2021

64.1 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Toyota COROLLA, model year 2021. Sample size: 19,185 cars, 40,779 tests and 26,149 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 19,185 cars

The 2021 Toyota Corolla has an overall defect rate of 64 per 100 vehicles, which is significantly lower than the average rate of 79 per 100, marking an 18% improvement. This model particularly excels in categories such as brakes, steering, and body structure, showing much fewer defects compared to other vehicles of the same year. However, it does experience higher visibility-related issues compared to the average, with a defect rate of nearly 18%. Mileage trends indicate increasing defect rates as mileage rises, but the Corolla remains below average across all mileage segments.

Cars by mileage segment

Total: 19,185 cars

Categories

Brakes
▲ 39.5% better
24.2 faults / 100 tests
Year avg: 40.0 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Brake disc or drum: significantly and obviously worn
  • Excessive fluctuation in brake effort through each wheel revolution
Steering
▲ 71.4% better
0.2 faults / 100 tests
Year avg: 0.7 / 100 tests
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • 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.
  • Free play in the steering, measured at the rim of the steering wheel is: excessive
Visibility
▼ 23.4% worse
17.9 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Wiper blade: missing or obviously not clearing the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Wiper blade: defective
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 42.0% better
6.5 faults / 100 tests
Year avg: 11.2 / 100 tests
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • The aim of a headlamp is not within limits laid down in the requirements
  • 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 only one lamp or all lamps not working
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 10.2% better
78.4 faults / 100 tests
Year avg: 87.3 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 71.4% better
0.6 faults / 100 tests
Year avg: 2.1 / 100 tests
  • Bumper: insecure or with damage likely to cause injury when grazed or contacted
  • A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
  • A door will not open using the relevant control or close properly
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 73.3% better
0.4 faults / 100 tests
Year avg: 1.5 / 100 tests
  • A seat belt: or flexible stalk damaged
  • A seat belt: or flexible stalk damaged
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt:
  • Audible warning:
Other
▲ 96.3% better
0.1 faults / 100 tests
Year avg: 2.7 / 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
  • 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

Fault rate by mileage segment

Model    Year average
0 268 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 9,473
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 3,436
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,497
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 1,397
Wiper blade: defective
MINOR
Occurrences: 1,014
Wiper blade: missing or obviously not clearing the windscreen
PRS
Occurrences: 799
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 649
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 601
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 573
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 564

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 649
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 564
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 557
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 448
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 152
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 128
A bonnet: which cannot be safely secured in the closed position
FAIL
Occurrences: 92
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
FAIL
Occurrences: 65
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 64
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 60