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MOT History from tests of petrol MG MGs year 1978

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

mot history
Pass percent:55.59%
(The average a petrol MG MG year 1978 passes without issue)
Based on:1,502 MOT Tests
Most common failuresNo# failures
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|141
Headlamp aim out of alignment137
Registration plate lamp issues83
Windscreen wiper does not clear the windscreen effectively75
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|72
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|58
Rear brake binding57
Parking brake: efficiency below requirements |3.7.B.7|51
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|49
Brakes imbalanced across an axle40
Rear parking brake recording little or no effort37
Horn not working |1.6.2a|36
Parking brake lever has no reserve travel |3.1.6b|35
Brake pipe excessively corroded31
Nearside Steering rack gaiter split |2.2.D.2d|26
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|26
Offside Steering rack gaiter split |2.2.D.2d|25
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|24
Brake hose excessively deteriorated23
Rear brake application uneven22
Offside Stop lamp not working |1.2.1b|21
Nearside Front position lamp|s| not working |1.1.A.3b|20
Service brake: efficiency below requirements |3.7.B.7|20
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|19
Nearside Stop lamp not working |1.2.1b|19
Brake pedal anti-slip provision missing |3.3.A.1b|18
Rear Exhaust system not adequately supported |7.1.1|18
Direction indicators not working |1.4.A.2c|18
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|16
Offside Front position lamp|s| not working |1.1.A.3b|16
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|15
Exhaust system not adequately supported |7.1.1|15
All position lamps not working |1.1.A.3b|15
Registration plate issues13
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|13
Rear Exhaust has a major leak of exhaust gases |7.1.2|12
Nearside Headlamp not working on dipped beam |1.7.5a|12
Offside Headlamp not working on dipped beam |1.7.5a|11
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|11
Fuel system component leaking |7.2.3|11
Direction indicators flashing less than 60 times a minute |1.4.A.2g|11
Stop lamp not working |1.2.1b|11
Offside Front Direction indicator not working |1.4.A.2c|11
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|11
Nearside Headlamp not working on main beam |1.7.5a|11
Offside rear brake recording little or no effort |3.7.B.5a|10
Front Exhaust has a major leak of exhaust gases |7.1.2|10
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|10
Offside Rear Stop lamp not working |1.2.1b|10
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|10
Parking brake: efficiency below requirements |3.7.C.1b|10
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|9
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|9
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|9
Offside front brake binding |3.7.B.1|9
Exhaust has a major leak of exhaust gases |7.1.2|9
Rear Mechanical brake component has restricted free movement9
Nearside Front Steering rack gaiter split |2.2.D.2d|9
Nearside Rear Stop lamp not working |1.2.1b|9
Nearside rear brake recording little or no effort |3.7.B.5a|8
Nearside Front Shock absorber has a serious fluid leak |2.7.3|8
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|8
Centre Exhaust system not adequately supported |7.1.1|8
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|8
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|8
Offside Headlamp not working on main beam |1.7.5a|8
Nearside Front Shock absorber has negligible damping effect |2.7.5|7
Offside Track rod end ball joint has excessive play |2.2.B.1f|7
Windscreen has damage7
Hazard warning switch faulty |1.4.B.1d|7
Nearside Front Direction indicator not working |1.4.A.2c|7
Hazard warning tell tale not working correctly |1.4.B.1e|7
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))7
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|7
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|7
Headlamp switch faulty |1.7.1|7
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|7
Nearside Track rod end ball joint has excessive play |2.2.B.1f|7
Nearside Front Front position lamp|s| not working |1.1.A.3b|7
Offside Front Headlamp not working on dipped beam |1.7.5a|7
Front Windscreen wiper not operating automatically when switched on |8.2.1b|7
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|7
Offside Rear rear brake recording little or no effort |3.7.B.5a|7
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|6
Driver`s seat insecure |6.2.A.1|6
Nearside Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|6
Offside Rear Braking system leaking |3.6.A.1|6
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|6
Emissions not tested |7.0|6
Nearside Front wheel bearing rough when rotated |2.5.A.2|6
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|6
Offside Front Steering rack gaiter split |2.2.D.2d|6
Front brake application uneven6
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|6
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|5
Offside Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|5
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|5
Nearside Rear rear brake recording little or no effort |3.7.B.5a|5
Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|5
Fuel tank leaking |7.2.3|5
Offside Front Direction indicators not working |1.4.A.2c|5
Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|5
Offside Front Shock absorber has a serious fluid leak |2.7.3|5
Offside Front Front position lamp|s| not working |1.1.A.3b|5
Driver`s door cannot be opened from inside the vehicle |6.2.B.1b|5
Nearside front brake binding |3.7.B.1|5
Nearside Front Headlamp not working on dipped beam |1.7.5a|5
Nearside Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3|4
Offside Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3|4
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|4
Offside Windscreen wiper blade deteriorated |8.2.2|4
rear brakes release unevenly |3.7.B.4|4
Rear Brake hose leaking |3.6.A.1|4
Nearside Front Body has a sharp edge caused by corrosion |6.1.C.1|4
Service brake: efficiency below requirements |3.7.C.1a|4
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Offside Front Seat belt retracting mechanism defective |5.2.5b|4
Nearside Front wheel bearing has excessive play |2.5.A.3c|4
Front Exhaust system not adequately supported |7.1.1|4
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Offside Rear Shock absorber has a serious fluid leak |2.7.3|4
Direction indicators flashing more than 120 times a minute |1.4.A.2g|4
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Front Fuel hose leaking |7.2.3|4
Offside Headlamp insecure |1.7.3|4
Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Brake performance not tested |3.7.A.1|4
Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|4
Offside Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|4
Exhaust engine idle speed too high |7.3.A.2a|4
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|4
Offside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|4
Nearside Headlamp aim beam image kick up to the offside |1.8|3
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||3
Steering column top bearing excessively worn |2.1.2c|3
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|3
Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|3
Nearside Rear Direction indicator not working |1.4.A.2c|3
Nearside Seat belt retracting mechanism defective |5.2.5b|3
Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside Rear Brake pipe inadequately clipped |3.6.B.1|3
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|3
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|3
Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2|3
Rear Exhaust emissions carbon monoxide content excessive |7.3.B.1a|3
Front Headlamp not working on main beam |1.7.5a|3
Offside Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c|3
Offside Front Brake hose leaking |3.6.A.1|3
Offside Front wheel bearing rough when rotated |2.5.A.2|3
Offside Front Brake hose excessively damaged |3.6.B.4d|3
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|3
Nearside Rear position lamp|s| not working |1.1.A.3b|3
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Front Headlamp not working on main beam |1.7.5a|3
Offside Front Front wheel bearing has excessive play |2.5.A.3c|3
Centre Exhaust mounting missing |7.1.1b|3
Steering column shaft has excessive end float |2.1.3|3
Offside Front Windscreen wiper blade deteriorated |8.2.2|3
Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|3
Fuel pipe leaking |7.2.3|3
Rear Exhaust emissions hydrocarbon content excessive |7.3.B.1b|3
Brake pedal spongy |3.3.B.1b|3
Offside Front Shock absorber has negligible damping effect |2.7.5|3
Nearside Windscreen wiper blade deteriorated |8.2.2|3
Exhaust has part of the system excessively deteriorated |7.1.1a|3
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|3
Rear Fuel system component leaking |7.2.3|3
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|3
Steering wheel retaining device insecure |2.1.6|3
Horn not loud enough to be heard by another road user |1.6.2b|3
Offside Front coil spring fractured |2.4.C.1a|3
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|3
Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|3
Offside Front All position lamps not working |1.1.A.3b|3
Nearside Rear All position lamps not working |1.1.A.3b|3
Offside Rear Wheel insecure |4.2.A.1c|3
Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|3
Front brake disc excessively pitted |3.5.1h|3
Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside Front suspension has excessive play in a pin or bush of a lower wishbone inner bearing |2.5.B.1a|3

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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