Mg MG 5 - 2021
73.2 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 Mg MG 5, model year 2021.
Sample size: 327 cars, 1,177 tests and 861 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: 327 cars
The 2021 MG 5 has an overall defect rate of 73 defects per 100 vehicles, which is 6.9% lower than the average for its year, suggesting a slightly better performance. However, it shows a significant increase in defects with mileage, especially in the higher mileage categories. The MG 5 excels in areas such as brakes, steering, visibility, and body structure, with much lower defect rates compared to the average car in these categories. Conversely, it struggles significantly in lights and electrics, where the defect rate is considerably higher than the average.
Cars by mileage segment
Total: 327 cars
Categories
Brakes
▲ 86.5% better
5.4 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
- Anti-slip provision missing, loose or worn smooth
- Excessive fluctuation in brake effort through each wheel revolution
- Brake disc or drum: significantly and obviously worn
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
Visibility
▲ 47.6% better
7.6 faults / 100 tests
Year avg: 14.5 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear 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
- An obstruction: materially affecting the driver’s view of the road through the swept area of the windscreen or an obligatory external mirror not visible
Lights & Electrics
▼ 344.6% worse
49.8 faults / 100 tests
Year avg: 11.2 / 100 tests
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Stop lamp(s): all missing or inoperative
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
Wheels & Suspension
▲ 7.0% better
81.2 faults / 100 tests
Year avg: 87.3 / 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
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 76.2% better
0.5 faults / 100 tests
Year avg: 2.1 / 100 tests
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▲ 0.0% better
1.5 faults / 100 tests
Year avg: 1.5 / 100 tests
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Seat belt not functioning as intended or of an incorrect type
- A seat belt: or flexible stalk damaged
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- Audible warning:
Other
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.7 / 100 tests
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: 293
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
MINOR
Occurrences: 45
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 42
Stop lamp(s): all missing or inoperative
PRS
Occurrences: 40
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 39
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
PRS
Occurrences: 36
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 31
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
PRS
Occurrences: 26
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: 21
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 21
Serious faults (Top 10)
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 42
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 31
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: 21
Stop lamp(s): all missing or inoperative
FAIL
Occurrences: 20
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 17
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 12
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 11
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 6
Headlamp aim unable to be tested
FAIL
Occurrences: 6
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 5