MOT History from tests of petrol MG MGs year 1977

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:55.69%

(The average a petrol MG MG year 1977 passes without issue)

Based on:1,072 MOT Tests

Most common failures	No# failures
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	95
Headlamp aim out of alignment	92
Parking brake: efficiency below requirements \|3.7.B.7\|	63
Registration plate lamp issues	57
Windscreen wiper does not clear the windscreen effectively	52
Rear brake binding	43
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	43
Horn not working \|1.6.2a\|	43
Rear parking brake recording little or no effort	35
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	32
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	25
Service brake: efficiency below requirements \|3.7.B.7\|	24
Parking brake lever has no reserve travel \|3.1.6b\|	24
Brake pipe excessively corroded	21
Brakes imbalanced across an axle	20
Registration plate issues	19
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	18
Brake hose excessively deteriorated	18
Offside Steering rack gaiter split \|2.2.D.2d\|	17
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	14
Direction indicators not working \|1.4.A.2c\|	14
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	13
Nearside Front Direction indicator not working \|1.4.A.2c\|	13
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	12
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	12
Exhaust system not adequately supported \|7.1.1\|	12
Rear brake application uneven	12
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	12
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	12
Hazard warning switch faulty \|1.4.B.1d\|	12
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	12
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	11
Rear Exhaust system not adequately supported \|7.1.1\|	11
Nearside Steering rack gaiter split \|2.2.D.2d\|	11
Offside Front Direction indicator not working \|1.4.A.2c\|	10
Offside Headlamp not working on dipped beam \|1.7.5a\|	10
Nearside rear brake recording little or no effort \|3.7.B.5a\|	10
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	9
Brake pedal anti-slip provision missing \|3.3.A.1b\|	9
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Nearside Headlamp not working on main beam \|1.7.5a\|	9
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	8
Nearside Headlamp not working on dipped beam \|1.7.5a\|	8
Nearside Stop lamp not working \|1.2.1b\|	8
Brake performance not tested \|3.7.A.1\|	7
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	7
Offside Stop lamp not working \|1.2.1b\|	7
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Fuel system component leaking \|7.2.3\|	7
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	7
Offside Headlamp not working on main beam \|1.7.5a\|	7
Nearside Rear Stop lamp not working \|1.2.1b\|	7
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Nearside Rear Direction indicator not working \|1.4.A.2c\|	6
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	6
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	6
Offside Rear Leaf spring fractured \|2.4.B.1a\|	6
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	6
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	6
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	6
Exhaust has a major leak of exhaust gases \|7.1.2\|	6
Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	6
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	6
Offside front brake binding \|3.7.B.1\|	6
Centre Exhaust system not adequately supported \|7.1.1\|	6
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	5
Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	5
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	5
Headlamp not working on dipped beam \|1.7.5a\|	5
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	5
Windscreen washer not working	5
Hazard warning tell tale not working correctly \|1.4.B.1e\|	5
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	5
Rear Mechanical brake component has restricted free movement	5
Offside Front Steering rack gaiter split \|2.2.D.2d\|	5
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	5
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	5
Offside Windscreen wiper blade deteriorated \|8.2.2\|	5
Position lamp switch faulty \|1.1.A.1\|	5
Parking brake: efficiency below requirements \|3.7.C.1b\|	5
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	5
Emissions not tested \|7.0\|	5
Nearside front brake binding \|3.7.B.1\|	5
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	5
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	5
All position lamps not working \|1.1.A.3b\|	4
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	4
Exhaust emissions carbon monoxide content excessive \|8.2.1.2 \|b\|\|	4
Headlamp switch faulty \|1.7.1\|	4
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	4
Offside rear brake recording little or no effort \|3.7.B.5a\|	4
Hazard warning lamps inoperative \|1.4.B.1b\|	4
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	4
Windscreen wiper blade insecure	4
Offside Front Shock absorber has negligible damping effect \|2.7.5\|	4
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	4
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	4
Exhaust engine idle speed too high \|7.3.A.2a\|	4
Nearside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	4
Offside Rear Stop lamp not working \|1.2.1b\|	4
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	4
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	4
Headlamp not working on main beam \|1.7.5a\|	4
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	3
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	3
Offside Rear Direction indicator not working \|1.4.A.2c\|	3
Windscreen wiper not operating automatically when switched on \|8.2.1b\|	3
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	3
Stop lamp remains on when the brakes are released	3
Braking system leaking \|3.6.A.1\|	3
Nearside Seat belt retracting mechanism defective \|5.2.5b\|	3
Offside Front Direction indicators not working \|1.4.A.2c\|	3
Nearside Headlamp excessively damaged so that the light output is severely reduced \|1.7.5a\|	3
Nearside Rear wheel cylinder leaking \|3.6.A.1\|	3
Steering column movement between the shaft and steering wheel \|2.1.2b\|	3
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	3
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	3
Stop lamp not working \|1.2.1b\|	3
Steering system excessively tight \|2.2.D.1\|	3
Front brake disc in such a condition that it is seriously weakened	3
Exhaust emits visible black smoke at idle \|7.3.A.2b\|	3
Nearside Rear Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	3
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	3
Nearside Front Steering pivot point has excessive play \|2.2.B.1g\|	3
Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Nearside Lower Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	3
Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	3
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	3
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	3
Nearside Front Anti-roll bar linkage has excessive play in a ball joint \|2.4.G.2\|	3
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Offside Front Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Offside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	3
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	3
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	3
Offside Rear Anti-roll bar attachment bracket/mounting fractured \|2.4.G.1\|	2
Direction indicators flashing more than 120 times a minute \|1.4.A.2g\|	2
Nearside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	2
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	2
Offside Rear Leaf spring to axle securing bolt insecure \|2.4.B.7b\|	2
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	2
Nearside Front Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	2
Offside Front Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	2
Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	2
Nearside Front Shock absorber insecure \|2.7.2b\|	2
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement \|7.2.4b\|	2
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))	2
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	2
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	2
Exhaust emits excessive dense blue smoke during acceleration \|7.3.A.2c\|	2
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Horn not working \|7.7 \|a\| \|ii\|\|	2
Exhaust emissions hydrocarbon content excessive \|8.2.1.2 \|b\|\|	2
Offside Obligatory mirror missing \|8.1.1\|	2
Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	2
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	2
Direction indicators not in good working order \|function impaired\| \|1.5.A1b\|	2
Nearside Seat belt attachment fitting badly deteriorated \|5.2.3\|	2
Offside Seat belt attachment fitting badly deteriorated \|5.2.3\|	2
Offside Headlamp excessively damaged so that the light output is severely reduced \|1.7.5a\|	2
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Offside Front Axle swivel joint has excessive play in a swivel pin \|2.5.A.3b\|	2
Parking brake lever defective so that it cannot be satisfactorily operated \|3.1.3c\|	2
Nearside Inner Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear Lower Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Rear Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	2
Offside Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	2
Indicator switch faulty \|1.4.A.1\|	2
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	2
Front Fuel pipe leaking \|7.2.3\|	2
Offside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	2
Nearside Rear Body has a sharp edge caused by corrosion \|6.1.C.1\|	2
Nearside Front Steering rack insecure \|2.2.B.1a\|	2
Offside Front Steering rack insecure \|2.2.B.1a\|	2
Nearside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	2
Offside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	2
Nearside Front Windscreen wiper blade deteriorated \|8.2.2\|	2
Offside Front Windscreen wiper blade deteriorated \|8.2.2\|	2
Offside Front Steering pivot point has excessive play \|2.2.B.1g\|	2
Offside Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	2
Nearside Front Anti-roll bar rubber mounting bonding deteriorated resulting in excessive movement \|2.4.G.2\|	2
Nearside Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Offside Steering pivot point has excessive play \|2.2.B.1g\|	2
Nearside Front front brake binding \|3.7.B.1\|	2
Brake pedal creeps down when held under pressure \|3.3.B.1a\|	2
Brake master cylinder fluid level below minimum level \|3.6.G.1e\|	2
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	2
Nearside Outer Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	2
Front brake application uneven	2
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	2
Offside Front Brake hose leaking \|3.6.A.1\|	2
Nearside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	2
Battery insecure \|1.9.1\|	2
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	2
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	2
Windscreen has damage	2
An item not tested \|Manual\|	2
Mechanical brake component has restricted free movement	2
Nearside Steering pivot point has excessive play \|2.2.B.1g\|	2
Indicator tell tale inoperative \|1.4.A.2a\|	2
Driver`s door cannot be opened from inside the vehicle \|6.2.B.1b\|	2
Exhaust has a part missing \|7.1.1a\|	2
Nearside Front Body has a sharp edge caused by corrosion \|6.1.C.1\|	2

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 MGs year 1977

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