Mg ZT - 2005
320.8 faults per 100 tests
Year average for all cars of 2005 is 377.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mg ZT, model year 2005.
Sample size: 509 cars, 1,084 tests and 3,477 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: 509 cars
The 2005 MG ZT has an overall defect rate of 321 defects per 100 vehicles, which is 15% below the yearly average of 376 defects. This model shows significant improvement in visibility, body structure, and other categories compared to the average, with defects in these areas being 39%, 48%, and 44% lower, respectively. However, it performs worse in steering and equipment issues, with defect rates 28% and 29% higher than average. Mileage-related trends indicate that as mileage increases, defect rates rise, although the MG ZT remains below the average across all mileage brackets. Overall, while the MG ZT excels in certain areas, its steering and equipment concerns warrant attention.
Cars by mileage segment
Total: 509 cars
Categories
Brakes
▲ 4.9% better
150.7 faults / 100 tests
Year avg: 158.5 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Parking brake efficiency: below minimum requirement
- Brake hose ferrules: excessively corroded
- Brake pipe damaged or excessively corroded
Steering
▼ 28.6% worse
28.8 faults / 100 tests
Year avg: 22.4 / 100 tests
- Power steering fluid leaking or system malfunctioning
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- 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.
Visibility
▲ 39.4% better
17.2 faults / 100 tests
Year avg: 28.4 / 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
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 18.3% better
89.9 faults / 100 tests
Year avg: 110.1 / 100 tests
- Lamp emitted colour, position or intensity not in accordance with the requirements
- Headlamp reflector or lens: slightly defective
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- Beam image obviously incorrect
Wheels & Suspension
▲ 10.5% better
281.2 faults / 100 tests
Year avg: 314.1 / 100 tests
- A suspension component: excessively damaged or corroded
- A suspension pin, bush, joint or bearing: excessively worn
- A spring: or spring component fractured or seriously weakened
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 48.9% better
31.4 faults / 100 tests
Year avg: 61.5 / 100 tests
- Exhaust system has a major leak or is insecure
- Body, cab or chassis: excessively corroded at mounting points
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Exhaust system has a major leak or is insecure
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▼ 23.3% worse
15.9 faults / 100 tests
Year avg: 12.9 / 100 tests
- 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
- 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
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 43.0% better
26.6 faults / 100 tests
Year avg: 46.7 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions test unable to be completed
- Emissions test unable to be completed
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 345
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 310
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 210
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 172
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 162
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 131
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 116
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 98
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 98
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: 80
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 59
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 42
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 41
Beam image obviously incorrect
FAIL
Occurrences: 39
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 26
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 25
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 24
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 24
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 22
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 21