Mg B - 1980
133.8 faults per 100 tests
Year average for all cars of 1980 is 84.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mg B, model year 1980.
Sample size: 206 cars, 370 tests and 495 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: 206 cars
The MG B from 1980 shows a significantly higher overall defect rate compared to the average car of the same year, with 134 defects per 100 vehicles against the yearly average of 84. This model particularly stands out with elevated issues in several categories, including brakes, steering, and visibility, where it has higher defect rates than the average. Notably, the model exhibits a concerning trend in the lowest mileage category (0–31,000 miles), displaying a defect rate of 377, which is above the average for that segment. While tyre wear is not highlighted, the MG B's performance in other areas suggests it may require more attention and maintenance compared to its contemporaries.
Cars by mileage segment
Total: 206 cars
Categories
Brakes
▼ 63.9% worse
40.0 faults / 100 tests
Year avg: 24.4 / 100 tests
- Significant brake effort recorded with no brake applied indicating a binding brake
- Brakes imbalance across an axle such that: the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Or in the case of testing on the road, the vehicle deviates excessively from a straight lin
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▼ 35.2% worse
17.3 faults / 100 tests
Year avg: 12.8 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- Steering gear casing: retaining devices dangerously loose or relative movement to chassis/bodywork visible
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- A steering ball joint: with excessive wear or free play
Visibility
▼ 98.5% worse
13.5 faults / 100 tests
Year avg: 6.8 / 100 tests
- Obligatory mirror or device missing
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper not operating or missing
- Wiper blade: defective
Lights & Electrics
▼ 59.4% worse
38.9 faults / 100 tests
Year avg: 24.4 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- 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
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- 4.3.1 (a) (iii)
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▼ 40.2% worse
69.7 faults / 100 tests
Year avg: 49.7 / 100 tests
- A wheel bearing: with excessive play
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▼ 64.8% worse
21.1 faults / 100 tests
Year avg: 12.8 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- Exhaust system has a major leak or is insecure
- Body, cab or chassis: excessively corroded at mounting points
- A transmission: joint, belt or chain excessively worn
Equipment
▼ 53.1% worse
4.9 faults / 100 tests
Year avg: 3.2 / 100 tests
- 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
- Audible warning:
- Seat belt retractor not functioning as intended
Other
▼ 79.3% worse
62.2 faults / 100 tests
Year avg: 34.7 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed default limits
- Emissions test unable to be completed
- Emissions levels exceed default limits
- Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road users
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 75
Emissions levels exceed default limits
FAIL
Occurrences: 31
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 26
A wheel bearing: with excessive play
ADVISORY
Occurrences: 20
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 20
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 15
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 15
Steering rack gaiter or ball joint dust cover: damaged or deteriorated
MINOR
Occurrences: 14
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 13
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 12
Serious faults (Top 10)
Emissions levels exceed default limits
FAIL
Occurrences: 31
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 15
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 15
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 8
Brakes imbalance across an axle such that: the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Or in the case of testing on the road, the vehicle deviates excessively from a straight lin
FAIL
Occurrences: 7
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 7
4.3.1 (a) (iii)
FAIL
Occurrences: 7
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: 7
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 7
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 6