MOT History from tests of petrol MG B GTs year 1975

Review the list of common MG B GT failures below or to perform a specific mot history check on your MG then use our popular KnowYourCar service

mot history

Pass percent:64.91%

(The average a petrol MG B GT year 1975 passes without issue)

Based on:6,685 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	464
Parking brake: efficiency below requirements \|3.7.B.7\|	295
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	238
Horn not working \|1.6.2a\|	218
Rear brake binding	212
Windscreen wiper does not clear the windscreen effectively	204
Rear parking brake recording little or no effort	194
Registration plate lamp issues	189
Brakes imbalanced across an axle	189
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	123
Brake pipe excessively corroded	107
Nearside Steering rack gaiter split \|2.2.D.2d\|	103
Offside Steering rack gaiter split \|2.2.D.2d\|	100
Parking brake lever has no reserve travel \|3.1.6b\|	99
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	98
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	95
Nearside Stop lamp not working \|1.2.1b\|	93
Rear brake application uneven	92
Offside Stop lamp not working \|1.2.1b\|	89
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	80
Registration plate issues	71
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	66
Nearside Headlamp not working on dipped beam \|1.7.5a\|	65
Brake hose excessively deteriorated	64
Direction indicators not working \|1.4.A.2c\|	63
Service brake: efficiency below requirements \|3.7.B.7\|	60
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	56
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	55
Nearside Headlamp not working on main beam \|1.7.5a\|	52
Offside Front Steering rack gaiter split \|2.2.D.2d\|	52
Offside Headlamp not working on main beam \|1.7.5a\|	52
Offside Headlamp not working on dipped beam \|1.7.5a\|	52
Hazard warning switch faulty \|1.4.B.1d\|	49
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	47
Fuel system component leaking \|7.2.3\|	43
Nearside Rear Stop lamp not working \|1.2.1b\|	40
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	40
Offside Rear Stop lamp not working \|1.2.1b\|	38
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	38
Nearside rear brake recording little or no effort \|3.7.B.5a\|	35
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	35
Nearside front brake binding \|3.7.B.1\|	34
Offside rear brake recording little or no effort \|3.7.B.5a\|	32
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	31
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	31
Nearside Front Direction indicator not working \|1.4.A.2c\|	31
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	31
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	30
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	29
Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	29
Exhaust has a major leak of exhaust gases \|7.1.2\|	29
Stop lamp remains on when the brakes are released	28
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	27
Offside front brake binding \|3.7.B.1\|	27
Rear Exhaust system not adequately supported \|7.1.1\|	26
Offside Front Direction indicator not working \|1.4.A.2c\|	26
Rear Mechanical brake component has restricted free movement	25
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	24
All position lamps not working \|1.1.A.3b\|	24
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	24
Parking brake: efficiency below requirements \|3.7.C.1b\|	23
Stop lamp not working \|1.2.1b\|	23
Centre Exhaust system not adequately supported \|7.1.1\|	22
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	22
Front brake application uneven	21
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	21
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	21
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	21
Battery insecure \|1.9.1\|	20
Exhaust system not adequately supported \|7.1.1\|	20
Offside Rear Direction indicator not working \|1.4.A.2c\|	20
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	20
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	20
Hazard warning lamps inoperative \|1.4.B.1b\|	19
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	19
Fuel pipe leaking \|7.2.3\|	19
Driver`s seat insecure \|6.2.A.1\|	19
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	19
Windscreen washer not working	19
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	19
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	18
Brake pedal spongy \|3.3.B.1b\|	17
Emissions not tested \|7.0\|	17
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	17
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	16
Brake performance not tested \|3.7.A.1\|	16
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	16
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	16
Fuel tank leaking \|7.2.3\|	16
rear brakes release unevenly \|3.7.B.4\|	16
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	16
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))	16
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	16
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	15
Nearside Front Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	15
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	15
Headlamp switch faulty \|1.7.1\|	15
Nearside Front front brake binding \|3.7.B.1\|	14
Nearside Rear Braking system leaking \|3.6.A.1\|	14
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	14
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	14
Mechanical brake component has restricted free movement	14
Offside Front Headlamp not working on main beam \|1.7.5a\|	14
Offside Rear wheel bearing has excessive play \|2.6.2\|	14
Windscreen wiper not operating automatically when switched on \|8.2.1b\|	14
Brake pedal anti-slip provision missing \|3.3.A.1b\|	14
Indicator switch faulty \|1.4.A.1\|	14
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	13
Steering wheel retaining device insecure \|2.1.6\|	13
Offside Obligatory mirror missing \|8.1.1\|	13
Exhaust engine idle speed too high \|7.3.A.2a\|	13
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	13
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	13
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	13
Windscreen has damage	12
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	12
Offside Front Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	12
Position lamp switch faulty \|1.1.A.1\|	12
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	12
Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	12
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Nearside Front Seat belt retracting mechanism defective \|5.2.5b\|	12
Offside Front Seat belt retracting mechanism defective \|5.2.5b\|	12
Nearside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	12
Horn not loud enough to be heard by another road user \|1.6.2b\|	11
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	11
Nearside Rear Direction indicator not working \|1.4.A.2c\|	11
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	11
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	11
Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	11
Offside Front front brake binding \|3.7.B.1\|	10
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	10
Offside Front Direction indicators not working \|1.4.A.2c\|	10
Offside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	10
Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	10
Direction indicators flashing more than 120 times a minute \|1.4.A.2g\|	10
Offside Front Shock absorber has negligible damping effect \|2.7.5\|	10
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	10
Windscreen wiper blade insecure	10
Nearside Seat belt retracting mechanism defective \|5.2.5b\|	10
Headlamp not working on main beam \|1.7.5a\|	10
Nearside Front Headlamp not working on main beam \|1.7.5a\|	10
Offside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	10
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	9
Rear Stop lamp not working \|1.2.1b\|	9
Brake hose has insufficient room to move	9
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	9
Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Horn not working (7.7 (a) (ii))	9
Offside Front Position lamp not working (4.2.1 (a) (ii))	9
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	9
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b))	9
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	9
Nearside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	9
Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	8
Fuel hose leaking \|7.2.3\|	8
Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	8
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Front passenger seat insecure \|6.2.3\|	8
Nearside Front Direction indicators not working \|1.4.A.2c\|	8
Rear Fuel system component leaking \|7.2.3\|	8
Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	8
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Offside Windscreen wiper blade deteriorated \|8.2.2\|	8
Offside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	8
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	8
Nearside Front coil spring fractured \|2.4.C.1a\|	8
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	8
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	8

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

MOT History from tests of petrol MG B GTs year 1975

Find us on Facebook