Mg ZR - 2003
290.3 faults per 100 tests
Year average for all cars of 2003 is 380.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mg ZR, model year 2003.
Sample size: 559 cars, 1,149 tests and 3,336 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: 559 cars
The 2003 MG ZR has an overall defect rate of 290 per 100 vehicles, which is 23% lower than the average for cars of the same year, indicating a relatively better performance in terms of defects. Notably, the model shows particularly strong results in the categories of brakes, visibility, lights and electrics, and wheels, suspensions, and axles, all of which have significantly lower defect rates compared to the average. However, as mileage increases, defect rates for the MG ZR tend to rise, particularly notable in the highest mileage category, where defects reach 548 per 100 vehicles. Overall, while tyre wear is a common issue across vehicles, the MG ZR excels in several key areas compared to its peers.
Cars by mileage segment
Total: 559 cars
Categories
Brakes
▲ 28.1% better
121.7 faults / 100 tests
Year avg: 169.3 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
Steering
▲ 15.1% better
21.4 faults / 100 tests
Year avg: 25.2 / 100 tests
Visibility
▲ 27.5% better
21.6 faults / 100 tests
Year avg: 29.8 / 100 tests
Lights & Electrics
▲ 33.5% better
68.4 faults / 100 tests
Year avg: 102.8 / 100 tests
Wheels & Suspension
▲ 32.9% better
202.8 faults / 100 tests
Year avg: 302.1 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- Tyre tread depth not in accordance with the requirements
- The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
- A suspension pin, bush, joint or bearing: excessively worn
- A spring: or spring component fractured or seriously weakened
Body/Structure
▼ 15.8% worse
75.5 faults / 100 tests
Year avg: 65.2 / 100 tests
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▼ 11.0% worse
15.1 faults / 100 tests
Year avg: 13.6 / 100 tests
Other
▼ 2.7% worse
54.1 faults / 100 tests
Year avg: 52.7 / 100 tests
- 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
* Metric: faults per 100 tests.
Most common faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 257
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 183
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 168
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 166
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 157
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 125
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 125
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 114
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 89
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 85
Serious faults (Top 10)
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 71
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 53
Emissions levels exceed default limits
FAIL
Occurrences: 40
Exhaust system has a major leak or is insecure
FAIL
Occurrences: 37
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 34
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 32
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 30
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 29
is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
FAIL
Occurrences: 26
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 25