MOT History from tests of petrol MG Bs year 1970

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:75.88%

(The average a petrol MG B year 1970 passes without issue)

Based on:9,976 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	355
Registration plate lamp issues	235
Parking brake: efficiency below requirements \|3.7.B.7\|	230
Windscreen wiper does not clear the windscreen effectively	228
Brakes imbalanced across an axle	196
Rear brake binding	177
Horn not working \|1.6.2a\|	121
Rear parking brake recording little or no effort	103
Offside Stop lamp not working \|1.2.1b\|	95
Nearside Stop lamp not working \|1.2.1b\|	90
Rear brake application uneven	79
Fuel system component leaking \|7.2.3\|	71
Service brake: efficiency below requirements \|3.7.B.7\|	68
Brake hose excessively deteriorated	66
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	65
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	61
Offside Headlamp not working on dipped beam \|1.7.5a\|	55
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	50
Nearside Steering rack gaiter split \|2.2.D.2d\|	47
Brake pipe excessively corroded	45
Parking brake lever has no reserve travel \|3.1.6b\|	43
Offside Headlamp not working on main beam \|1.7.5a\|	42
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	40
Nearside Headlamp not working on dipped beam \|1.7.5a\|	38
Nearside Headlamp not working on main beam \|1.7.5a\|	38
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	38
Nearside Rear Stop lamp not working \|1.2.1b\|	33
Offside Steering rack gaiter split \|2.2.D.2d\|	33
Exhaust has a major leak of exhaust gases \|7.1.2\|	32
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	30
Offside Rear Stop lamp not working \|1.2.1b\|	29
Rear Exhaust system not adequately supported \|7.1.1\|	29
Offside rear brake recording little or no effort \|3.7.B.5a\|	28
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	28
Rear Mechanical brake component has restricted free movement	27
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	27
Nearside rear brake recording little or no effort \|3.7.B.5a\|	26
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	26
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	26
Nearside front brake binding \|3.7.B.1\|	25
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	25
Registration plate issues	24
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	24
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	23
Offside Front Direction indicator not working \|1.4.A.2c\|	23
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	23
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	22
Offside front brake binding \|3.7.B.1\|	22
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	22
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	22
Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	21
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	21
Stop lamp not working \|1.2.1b\|	21
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	21
Battery insecure \|1.9.1\|	21
Nearside Rear Wheel insecure \|4.2.A.1c\|	21
Nearside Front Wheel insecure \|4.2.A.1c\|	21
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	20
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	20
Windscreen washer not working	20
Direction indicators not working \|1.4.A.2c\|	20
Offside Rear Direction indicator not working \|1.4.A.2c\|	19
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	19
Nearside Front Direction indicator not working \|1.4.A.2c\|	19
Nearside Rear Direction indicator not working \|1.4.A.2c\|	19
Exhaust system not adequately supported \|7.1.1\|	18
Driver`s seat insecure \|6.2.A.1\|	18
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	18
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	18
Offside Front Wheel insecure \|4.2.A.1c\|	18
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	17
Offside Rear Wheel insecure \|4.2.A.1c\|	17
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	16
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	16
Horn not working (7.7 (a) (ii))	15
Parking brake: efficiency below requirements \|3.7.C.1b\|	15
Brake pedal anti-slip provision missing \|3.3.A.1b\|	15
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	15
Centre Exhaust system not adequately supported \|7.1.1\|	15
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	14
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	14
Brake hose has insufficient room to move	14
Front brake application uneven	14
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	14
Offside Front Steering rack gaiter split \|2.2.D.2d\|	13
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	13
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	13
Nearside Rear Braking system leaking \|3.6.A.1\|	12
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Rear Stop lamp not working \|1.2.1b\|	12
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	12
Steering column top bearing excessively worn \|2.1.2c\|	11
Fuel pipe leaking \|7.2.3\|	11
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	11
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	11
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	11
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	11
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	10
Offside Front Shock absorber has negligible damping effect \|2.7.5\|	10
All position lamps not working \|1.1.A.3b\|	10
Offside Front Headlamp not working on main beam \|1.7.5a\|	10
rear brakes release unevenly \|3.7.B.4\|	10
Fuel system component insecure \|7.2.1\|	10
Headlamp not working on main beam \|1.7.5a\|	10
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	10
Offside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	10
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	10
Steering wheel retaining device insecure \|2.1.6\|	10
Nearside Front front brake binding \|3.7.B.1\|	10
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\|	10
Offside Rear Service brake excessively binding (1.2.1 (f))	10
Mechanical brake component has restricted free movement	10
Windscreen has damage	10
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	9
Nearside Front Headlamp not working on main beam \|1.7.5a\|	9
Horn not loud enough to be heard by another road user \|1.6.2b\|	9
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	9
Steering system excessively tight \|2.2.D.1\|	9
Brake performance not tested \|3.7.A.1\|	9
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	9
Stop lamp(s) all not working (4.3.1 (a) (iii))	9
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	9
Offside Rear Braking system leaking \|3.6.A.1\|	9
Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	9
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	9
Parking brake efficiency below requirements (1.4.2 (a) (i))	9
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	8
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	8
Headlamp switch faulty \|1.7.1\|	8
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Offside Rear wheel bearing has excessive play \|2.6.2\|	8
Nearside Rear brake drum contaminated by oil \|3.5.1h\|	8
Nearside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	8
Fuel hose leaking \|7.2.3\|	8
Offside Rear Shock absorber insecure \|2.7.2b\|	8
Nearside 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 Front front brake binding \|3.7.B.1\|	8
Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	8
Braking system leaking \|3.6.A.1\|	8
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	8
Speedometer cannot be illuminated. \|6.7.3\|	8
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	8
Brake pedal spongy \|3.3.B.1b\|	8
Indicator switch faulty \|1.4.A.1\|	8
Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i))	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.

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MOT History from tests of petrol MG Bs year 1970

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