Mg 3 - 2015
226.4 faults per 100 tests
Year average for all cars of 2015 is 174.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mg 3, model year 2015.
Sample size: 2,369 cars, 5,364 tests and 12,142 recorded faults.
0%
More faults compared to the average car of same model year
More faults compared to the average car of same model year
Quick summary
Total: 2,369 cars
The 2015 MG 3 has an overall defect rate of 226 defects per 100 vehicles, which is 33% higher than the yearly average of 170 defects per 100 vehicles. Notably, the model shows a concerning trend in specific categories such as Brakes, where defects are 26% higher than average, and Visibility, with a 31% increase in issues. Conversely, it performs better than average in Body/Structure, exhibiting a 37% lower defect rate. Additionally, significant mileage-related trends indicate that as the vehicle ages, defect rates tend to rise sharply, especially in the highest mileage bracket.
Cars by mileage segment
Total: 2,369 cars
Categories
Brakes
▼ 24.8% worse
105.7 faults / 100 tests
Year avg: 84.7 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
Steering
▲ 10.1% better
8.9 faults / 100 tests
Year avg: 9.9 / 100 tests
- A steering ball joint: with excessive wear or free play
- A steering ball joint: worn to the extent there is a serious risk of detachment
- A steering ball joint: with excessive wear or free play
- Power steering fluid leaking or system malfunctioning
- Power steering pipe, hose or wiring: excessively damaged or corroded
Visibility
▼ 30.4% worse
21.0 faults / 100 tests
Year avg: 16.1 / 100 tests
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- 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
Lights & Electrics
▼ 1.6% worse
31.5 faults / 100 tests
Year avg: 31.0 / 100 tests
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- 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
- Headlamp reflector or lens: slightly defective
- The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▼ 40.8% worse
251.0 faults / 100 tests
Year avg: 178.3 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension component: excessively damaged or corroded
- A spring: or spring component fractured or seriously weakened
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 41.9% better
6.8 faults / 100 tests
Year avg: 11.7 / 100 tests
- Exhaust system has a major leak or is insecure
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Fuel system: leaking, or missing or ineffective filler cap
- A transmission shaft constant velocity joint boot: severely deteriorated
- A door will not open using the relevant control or close properly
Equipment
▼ 227.5% worse
13.1 faults / 100 tests
Year avg: 4.0 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt:
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▼ 12.1% worse
14.8 faults / 100 tests
Year avg: 13.2 / 100 tests
- 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
- Emissions levels exceed default limits
- Engine MIL inoperative or indicating a malfunction
- Engine MIL inoperative or indicating a malfunction
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: 1,570
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 1,433
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 993
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 903
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 790
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 639
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 517
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 470
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 318
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 266
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 318
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 242
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 153
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 137
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 131
A steering ball joint: with excessive wear or free play
FAIL
Occurrences: 105
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 93
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 93
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 89
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 73