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MOT History from tests of petrol MG Bs year 1976

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:63.39%
(The average a petrol MG B year 1976 passes without issue)
Based on:5,253 MOT Tests
Most common failuresNo# failures
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|444
Headlamp aim out of alignment325
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|228
Windscreen wiper does not clear the windscreen effectively183
Registration plate lamp issues174
Horn not working |1.6.2a|173
Parking brake: efficiency below requirements |3.7.B.7|151
Rear brake binding137
Brakes imbalanced across an axle136
Rear parking brake recording little or no effort85
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|78
Rear brake application uneven76
Brake pipe excessively corroded74
Offside Steering rack gaiter split |2.2.D.2d|72
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|72
Parking brake lever has no reserve travel |3.1.6b|72
Nearside Steering rack gaiter split |2.2.D.2d|71
Brake hose excessively deteriorated67
Offside Front position lamp|s| not working |1.1.A.3b|63
Nearside Front position lamp|s| not working |1.1.A.3b|59
Nearside Stop lamp not working |1.2.1b|58
Offside Stop lamp not working |1.2.1b|53
Direction indicators not working |1.4.A.2c|48
Registration plate issues45
Fuel system component leaking |7.2.3|44
Service brake: efficiency below requirements |3.7.B.7|41
Nearside Headlamp not working on dipped beam |1.7.5a|40
Hazard warning switch faulty |1.4.B.1d|38
Offside Headlamp not working on main beam |1.7.5a|37
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|33
Offside Headlamp not working on dipped beam |1.7.5a|33
Nearside Headlamp not working on main beam |1.7.5a|32
Stop lamp remains on when the brakes are released30
Nearside front brake binding |3.7.B.1|30
All position lamps not working |1.1.A.3b|29
Offside Front Steering rack gaiter split |2.2.D.2d|29
Nearside rear brake recording little or no effort |3.7.B.5a|28
Windscreen washer not working 26
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|26
Offside Front Direction indicator not working |1.4.A.2c|26
Offside Rear position lamp|s| not working |1.1.A.3b|26
Offside front brake binding |3.7.B.1|25
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|25
Exhaust has a major leak of exhaust gases |7.1.2|24
Battery insecure |1.9.1|24
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|24
Nearside Front Steering rack gaiter split |2.2.D.2d|24
Mechanical brake component has restricted free movement23
Offside rear brake recording little or no effort |3.7.B.5a|23
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|23
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|22
Nearside Front Shock absorber has a serious fluid leak |2.7.3|22
Rear Exhaust system not adequately supported |7.1.1|21
Rear Stop lamp not working |1.2.1b|21
Offside Front Shock absorber has a serious fluid leak |2.7.3|21
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|20
Direction indicators flashing less than 60 times a minute |1.4.A.2g|20
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|20
Rear Exhaust has a major leak of exhaust gases |7.1.2|20
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|20
Hazard warning lamps inoperative |1.4.B.1b|19
Nearside Front Headlamp not working on main beam |1.7.5a|19
Exhaust engine idle speed too high |7.3.A.2a|18
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|17
Nearside Front Front position lamp|s| not working |1.1.A.3b|17
Nearside Front Direction indicator not working |1.4.A.2c|17
Stop lamp not working |1.2.1b|16
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|16
Rear Mechanical brake component has restricted free movement16
Offside Front Front position lamp|s| not working |1.1.A.3b|15
Emissions not tested |7.0|15
Offside Front Headlamp not working on main beam |1.7.5a|15
Front brake application uneven15
Nearside Rear position lamp|s| not working |1.1.A.3b|15
Offside Rear Shock absorber has a serious fluid leak |2.7.3|14
Parking brake: efficiency below requirements |3.7.C.1b|14
Nearside Rear Braking system leaking |3.6.A.1|14
Nearside Front wheel bearing has excessive play |2.5.A.3c|14
Headlamp switch faulty |1.7.1|14
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|14
Nearside Rear rear brake recording little or no effort |3.7.B.5a|13
Nearside Front Headlamp not working on dipped beam |1.7.5a|13
Offside Front front brake binding |3.7.B.1|13
Exhaust system not adequately supported |7.1.1|13
Offside Front Headlamp not working on dipped beam |1.7.5a|13
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|13
Fuel hose leaking |7.2.3|12
Nearside Rear Stop lamp not working |1.2.1b|12
Offside Rear Stop lamp not working |1.2.1b|12
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|12
Offside Front Shock absorber has negligible damping effect |2.7.5|12
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|11
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|11
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|11
Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|11
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|11
Offside Rear rear brake recording little or no effort |3.7.B.5a|11
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|11
Fuel pipe leaking |7.2.3|11
Indicator switch faulty |1.4.A.1|10
Horn not working |7.7 |a| |ii||10
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|10
Position lamp switch faulty |1.1.A.1|10
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b|10
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|10
rear brakes release unevenly |3.7.B.4|10
Centre Exhaust system not adequately supported |7.1.1|10
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|10
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||10
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))9
Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b))9
Rear Fuel system component leaking |7.2.3|9
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|9
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|9
Offside Front wheel bearing has excessive play |2.5.A.3c|9
Nearside Front front brake binding |3.7.B.1|9
Nearside Front wheel bearing rough when rotated |2.5.A.2|9
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|9
Nearside Front Shock absorber has negligible damping effect |2.7.5|9
Steering system excessively tight |2.2.D.1|9
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|9
Front Exhaust system not adequately supported |7.1.1|8
Brake performance not tested |3.7.A.1|8
Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|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
Parking brake efficiency below requirements (1.4.2 (a) (i))8
Brake hose has insufficient room to move8
Offside Rear Direction indicator not working |1.4.A.2c|8
Driver`s seat insecure |6.2.A.1|8
Offside Front Direction indicators not working |1.4.A.2c|8
Front Windscreen wiper not operating automatically when switched on |8.2.1b|8
Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|8
Nearside Direction indicator flashing less than 60 times a minute |1.4.A.2g|8
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|8
Offside Front Seat belt retracting mechanism defective |5.2.5b|7
Brake pedal spongy |3.3.B.1b|7
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|7
Direction indicators flashing more than 120 times a minute |1.4.A.2g|7
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|7
Offside Rear wheel bearing has excessive play |2.6.2|7
Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|7
Nearside Rear Direction indicator not working |1.4.A.2c|7
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|7
Horn not working (7.7 (a) (ii))7
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Stop lamp(s) all not working (4.3.1 (a) (iii))7
Hazard warning tell tale not working correctly |1.4.B.1e|7
Nearside Seat belt insecurely fixed to the vehicles structure |5.2.1a|7
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|7
Front Exhaust has a major leak of exhaust gases |7.1.2|6
Nearside Indicator tell tale inoperative |1.4.A.2a|6
Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|6
Steering column movement between the shaft and steering wheel |2.1.2b|6
Nearside Seat belt retracting mechanism defective |5.2.5b|6
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|6
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|6
Nearside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6|6
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|6
Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|6
rear parking |secondary| brakes imbalanced6
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|6
Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|6
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|6
Brake pedal anti-slip provision missing |3.3.A.1b|6
Headlamp not working on main beam |1.7.5a|6
Offside Front coil spring broken |2.4.C.1a|6
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|6
Offside Rear Braking system leaking |3.6.A.1|6
Nearside Direction indicators flashing less than 60 times a minute |1.4.A.2g|6
Front Fuel system component leaking |7.2.3|6
Nearside Front Wheel insecure |4.2.A.1c|6
Brake hose damaged6
Direction indicators not in good working order |function impaired| |1.5.A1b|6
Nearside Front brake caliper locking device insecure |3.5.1l|6
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|6
front brake binding |3.7.B.1|6
Stop lamp|s| all not working |4.3.1 |a| |iii||6
Exhaust emissions hydrocarbon content excessive |8.2.1.2 |b||6
Nearside Front Direction indicators not working |1.4.A.2c|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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