MOT History from tests of petrol MG Bs year 1972

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

mot history

Pass percent:76.52%

(The average a petrol MG B year 1972 passes without issue)

Based on:8,068 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	282
Registration plate lamp issues	186
Parking brake: efficiency below requirements \|3.7.B.7\|	156
Windscreen wiper does not clear the windscreen effectively	150
Brakes imbalanced across an axle	148
Horn not working \|1.6.2a\|	132
Rear brake binding	119
Rear parking brake recording little or no effort	82
Offside Stop lamp not working \|1.2.1b\|	73
Nearside Stop lamp not working \|1.2.1b\|	70
Rear brake application uneven	62
Nearside Headlamp not working on dipped beam \|1.7.5a\|	53
Offside Headlamp not working on dipped beam \|1.7.5a\|	52
Nearside Headlamp not working on main beam \|1.7.5a\|	48
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	47
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	46
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	45
Nearside Steering rack gaiter split \|2.2.D.2d\|	45
Brake hose excessively deteriorated	44
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	43
Offside Headlamp not working on main beam \|1.7.5a\|	42
Offside Steering rack gaiter split \|2.2.D.2d\|	42
Windscreen washer not working	34
Fuel system component leaking \|7.2.3\|	29
Service brake: efficiency below requirements \|3.7.B.7\|	27
Registration plate issues	27
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	25
Nearside Rear Stop lamp not working \|1.2.1b\|	25
Offside Rear Stop lamp not working \|1.2.1b\|	25
Brake pipe excessively corroded	24
Parking brake efficiency below requirements (1.4.2 (a) (i))	24
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	23
Battery insecure \|1.9.1\|	23
Nearside rear brake recording little or no effort \|3.7.B.5a\|	23
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	22
Parking brake lever has no reserve travel \|3.1.6b\|	22
Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	22
Horn not working (7.7 (a))	21
Nearside front brake binding \|3.7.B.1\|	21
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	20
Offside front brake binding \|3.7.B.1\|	20
Nearside Front Direction indicator not working \|1.4.A.2c\|	19
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	19
Offside Front Steering rack gaiter split \|2.2.D.2d\|	18
Stop lamp(s) all not working (4.3.1 (a) (iii))	18
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	17
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	17
Offside Rear Direction indicator not working \|1.4.A.2c\|	16
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	16
Nearside Rear Direction indicator not working \|1.4.A.2c\|	16
Direction indicators not working \|1.4.A.2c\|	15
Offside Front Direction indicator not working \|1.4.A.2c\|	15
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	15
Centre Exhaust system not adequately supported \|7.1.1\|	15
Offside Front Position lamp not working (4.2.1 (a) (ii))	15
Offside rear brake recording little or no effort \|3.7.B.5a\|	14
Stop lamp not working \|1.2.1b\|	14
Nearside Front Position lamp not working (4.2.1 (a) (ii))	14
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	14
Offside Rear Service brake excessively binding (1.2.1 (f))	14
Rear Mechanical brake component has restricted free movement	13
Brake pedal anti-slip provision missing \|3.3.A.1b\|	13
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	13
Offside Front Wheel insecure \|4.2.A.1c\|	13
Nearside Front front brake binding \|3.7.B.1\|	13
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	13
Exhaust has a major leak of exhaust gases \|7.1.2\|	12
Exhaust system not adequately supported \|7.1.1\|	12
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	12
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	12
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	11
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	11
Nearside Front Headlamp not working on main beam \|1.7.5a\|	11
Driver`s seat insecure \|6.2.A.1\|	11
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	11
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	11
Rear Exhaust system not adequately supported \|7.1.1\|	11
Nearside Rear Braking system leaking \|3.6.A.1\|	11
Nearside Front Wheel insecure \|4.2.A.1c\|	11
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	11
Steering system excessively tight \|2.2.D.1\|	10
Mechanical brake component has restricted free movement	10
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	10
All position lamps not working \|1.1.A.3b\|	10
Horn not working (7.7 (a) (ii))	10
Front brake application uneven	10
Offside Rear wheel bearing has excessive play \|2.6.2\|	10
Steering column movement between the shaft and steering wheel \|2.1.2b\|	10
Offside Front front brake binding \|3.7.B.1\|	10
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	9
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	9
Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	9
rear brakes release unevenly \|3.7.B.4\|	9
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	9
Offside Front Headlamp not working on main beam \|1.7.5a\|	9
Hazard warning switch faulty \|1.4.B.1d\|	9
Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Parking brake: efficiency below requirements \|3.7.C.1b\|	9
Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	9
All direction indicators not working (4.4.1 (a) (ii))	8
Nearside Front Wheel nut\|s\| loose \|4.2.A.1e\|	8
Nearside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	8
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	8
Headlamp switch faulty \|1.7.1\|	8
Offside Rear Position lamp not working (4.2.1 (a) (ii))	8
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	8
Brake hose has insufficient room to move	8
Nearside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	8
Windscreen wiper not operating automatically when switched on \|8.2.1b\|	8
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	8
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	8
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	8
Nearside 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
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	8
Nearside Rear Position lamp not working (4.2.1 (a) (ii))	8
Fuel cap/sealing device sealing washer torn \|7.2.4c\|	8
Offside Rear Wheel insecure \|4.2.A.1c\|	8
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	8
Direction indicators flashing more than 120 times a minute \|1.4.A.2g\|	7
Stop lamp remains on when the brakes are released	7
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Speedometer cannot be illuminated. \|6.7.3\|	7
Offside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	7
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	7
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	7
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	7
Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i))	7
Nearside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	7
Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	7
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Nearside Rear Service brake excessively binding (1.2.1 (f))	7
Offside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	7
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	7
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	6
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	6
Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	6
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	6
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	6
Offside Front Wheel nut\|s\| loose \|4.2.A.1e\|	6
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	6
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	6
Main beam `tell-tale` not working \|1.7.4c\|	6
Nearside Front Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	6
Horn not working \|7.7 \|a\| \|ii\|\|	6
Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))	6
Nearside Rear Wheel insecure \|4.2.A.1c\|	6
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	6
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	6
Nearside Steering rack gaiter insecure \|2.2.D.2d\|	6
Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	6
Offside Rear Braking system leaking \|3.6.A.1\|	6

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.

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MOT History from tests of petrol MG Bs year 1972

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