Mg B - 1972
116.9 faults per 100 tests
Year average for all cars of 1972 is 134.6 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mg B, model year 1972.
Sample size: 648 cars, 1,098 tests and 1,284 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: 648 cars
The 1972 MG B has an overall defect rate of 117 per 100 vehicles, which is 13% lower than the average for its year at 135 per 100. This model performs particularly well in the categories of Lights & Electrics and Body/Structure, showing significantly fewer defects compared to the average. However, it struggles in the Equipment category, exhibiting more defects than average. Mileage-related trends indicate that as the vehicle's mileage increases, the defect rates escalate, particularly in the highest mileage bracket.
Cars by mileage segment
Total: 648 cars
Categories
Brakes
▲ 15.6% better
39.9 faults / 100 tests
Year avg: 47.3 / 100 tests
- Brake pipe damaged or excessively corroded
- 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
- Significant brake effort recorded with no brake applied indicating a binding brake
- Significant brake effort recorded with no brake applied indicating a binding brake
- Parking brake efficiency: below minimum requirement
Steering
▲ 17.7% better
15.8 faults / 100 tests
Year avg: 19.2 / 100 tests
- 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.
- Excessive radial movement between the top of the steering column and the shaft indicating an excessively worn top bearing
- Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
Visibility
▲ 16.9% better
11.8 faults / 100 tests
Year avg: 14.2 / 100 tests
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper not operating or missing
Lights & Electrics
▲ 21.6% better
30.8 faults / 100 tests
Year avg: 39.3 / 100 tests
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- The aim of a headlamp is not within limits laid down in the requirements
- 4.3.1 (a) (iii)
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
Wheels & Suspension
▲ 14.6% better
76.1 faults / 100 tests
Year avg: 89.1 / 100 tests
- 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
- A wheel bearing: with excessive play
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 33.0% better
14.4 faults / 100 tests
Year avg: 21.5 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- A transmission: joint, belt or chain excessively worn
- Exhaust system has a major leak or is insecure
- Fuel system: leaking, or missing or ineffective filler cap
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▼ 19.8% worse
11.5 faults / 100 tests
Year avg: 9.6 / 100 tests
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Seat belt not functioning as intended or of an incorrect type
- Speedometer: not sufficiently illuminated
- Audible warning:
- A seat belt:
Other
▼ 14.7% worse
33.5 faults / 100 tests
Year avg: 29.2 / 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
- Engine is idling clearly above its normal idle speed
- 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)
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 179
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 101
A wheel bearing: with excessive play
ADVISORY
Occurrences: 62
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 54
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 35
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 33
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 31
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 29
Significant brake effort recorded with no brake applied indicating a binding brake
ADVISORY
Occurrences: 28
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 27
Serious faults (Top 10)
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 31
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 21
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 21
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: 20
Audible warning:
FAIL
Occurrences: 19
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 17
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 17
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 16
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 15
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 11