MOT History from tests of petrol MG M Gs year 1971

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

mot history

Pass percent:66.67%

(The average a petrol MG M G year 1971 passes without issue)

Based on:117 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	11
Parking brake: efficiency below requirements \|3.7.B.7\|	6
Windscreen wiper does not clear the windscreen effectively	6
Rear brake binding	6
Horn not working \|1.6.2a\|	5
Brakes imbalanced across an axle	4
Service brake: efficiency below requirements \|3.7.B.7\|	3
Nearside Stop lamp not working \|1.2.1b\|	3
Offside Stop lamp not working \|1.2.1b\|	3
Registration plate lamp issues	3
Rear parking brake recording little or no effort	2
Brake hose excessively deteriorated	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Front Suspension has inadequate clearance with the chassis \|2.4.A.1a\|	2
Battery insecure \|1.9.1\|	2
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	2
Fuel system component leaking \|7.2.3\|	2
Parking brake lever has no reserve travel \|3.1.6b\|	2
Offside Steering rack gaiter split \|2.2.D.2d\|	2
Rear Brake pipe inadequately clipped \|3.6.B.1\|	2
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	2
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Offside Rear Fuel system component leaking \|7.2.3\|	2
Windscreen wiper blade insecure	1
Nearside Front Suspension has inadequate clearance with the chassis \|2.4.A.1a\|	1
Offside Rear Electrical wiring damaged and bare wires exposed \|1.9.2c\|	1
Offside Rear Fuel hose excessively chafed \|7.2.2\|	1
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	1
Offside Windscreen wiper blade deteriorated \|8.2.2\|	1
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Rear Suspension component mounting prescribed area is inadequately repaired by shock absorber mount \|2.4.A.3\|	1
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Nearside Front Direction indicator not working \|1.4.A.2c\|	1
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	1
Offside rear brake recording little or no effort \|3.7.B.5a\|	1
Nearside rear brake recording little or no effort \|3.7.B.5a\|	1
All position lamps not working \|1.1.A.3b\|	1
Nearside Rear Direction indicator not working \|1.4.A.2c\|	1
Horn not loud enough to be heard by another road user \|1.6.2b\|	1
Offside Front Suspension has inadequate clearance with the bump stop \|2.4.A.1a\|	1
Nearside Front Suspension has inadequate clearance with the bump stop \|2.4.A.1a\|	1
Front Brake pipe inadequately clipped \|3.6.B.1\|	1
Rear Fuel system component leaking \|7.2.3\|	1
Offside Front Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps \|1.7.4b\|	1
Fuel tank leaking \|7.2.3\|	1
Offside Front Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	1
Nearside Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	1
Offside Rear Position lamp not working (4.2.1 (a) (ii))	1
Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	1
Nearside Rear Brake pipe fouled by moving parts \|3.6.B.2a\|	1
Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	1
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	1
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	1
Nearside Rear Leaf spring to axle securing bolt insecure \|2.4.B.7b\|	1
Nearside Rear Leaf spring to axle securing nut missing \|2.4.B.7b\|	1
Rear Stop lamp not working \|1.2.1b\|	1
Nearside Front Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	1
Offside Front Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	1
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Upper Steering column shaft has excessive end float \|2.1.3\|	1
Nearside Front Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Nearside Rear Anti-roll bar attachment bracket/mounting damaged and its strength is seriously reduced \|2.4.G.1\|	1
Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	1
Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	1
Offside Front Service brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Rear Service brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Parking brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Seat belt retracting mechanism defective \|5.2.5b\|	1
Offside Front Direction indicator not working \|1.4.A.2c\|	1
Steering system fouling \|2.2.D.2a\|	1
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	1
Parking brake: efficiency below requirements \|3.7.C.1b\|	1
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	1
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	1
Nearside Rear Brake pivot has restricted free movement \|3.5.1k\|	1
Offside Rear Brake pivot has restricted free movement \|3.5.1k\|	1
Headlamp not working on dipped beam \|1.7.5a\|	1
Headlamp not working on main beam \|1.7.5a\|	1
Nearside Front Suspension arm attachment bracket/mounting insecure \|2.4.G.1\|	1
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	1
Nearside Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	1
Steering system excessively tight \|2.2.D.1\|	1
Parking brake lever is fouling adjacent parts of the vehicle \|3.1.6b\|	1
Brake pipe inadequately supported \|3.6.B.1\|	1
Nearside Front Brake hose twisted \|found during steering lock to lock check\| \|2.2.D.2b\|	1
Offside Front Brake pipe inadequately clipped \|3.6.B.1\|	1
Offside Front Brake pipe fouled by moving parts \|3.6.B.2a\|	1
Nearside Front Headlamp not in a clean condition affecting beam image \|1.2.4a\|	1
Nearside Front Side repeater not working \|1.4.A.2c\|	1
Offside Front Side repeater not working \|1.4.A.2c\|	1
Offside Front Upper Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	1
Nearside Front brake caliper has restricted free movement \|3.5.1k\|	1

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.

Most common failures	No# failures
Headlamp aim out of alignment	11
Parking brake: efficiency below requirements \|3.7.B.7\|	6
Windscreen wiper does not clear the windscreen effectively	6
Rear brake binding	6
Horn not working \|1.6.2a\|	5
Brakes imbalanced across an axle	4
Service brake: efficiency below requirements \|3.7.B.7\|	3
Nearside Stop lamp not working \|1.2.1b\|	3
Offside Stop lamp not working \|1.2.1b\|	3
Registration plate lamp issues	3
Rear parking brake recording little or no effort	2
Brake hose excessively deteriorated	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Front Suspension has inadequate clearance with the chassis \|2.4.A.1a\|	2
Battery insecure \|1.9.1\|	2
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	2
Fuel system component leaking \|7.2.3\|	2
Parking brake lever has no reserve travel \|3.1.6b\|	2
Offside Steering rack gaiter split \|2.2.D.2d\|	2
Rear Brake pipe inadequately clipped \|3.6.B.1\|	2
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	2
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Offside Rear Fuel system component leaking \|7.2.3\|	2
Windscreen wiper blade insecure	1
Nearside Front Suspension has inadequate clearance with the chassis \|2.4.A.1a\|	1
Offside Rear Electrical wiring damaged and bare wires exposed \|1.9.2c\|	1
Offside Rear Fuel hose excessively chafed \|7.2.2\|	1
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	1
Offside Windscreen wiper blade deteriorated \|8.2.2\|	1
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Rear Suspension component mounting prescribed area is inadequately repaired by shock absorber mount \|2.4.A.3\|	1
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Nearside Front Direction indicator not working \|1.4.A.2c\|	1
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	1
Offside rear brake recording little or no effort \|3.7.B.5a\|	1
Nearside rear brake recording little or no effort \|3.7.B.5a\|	1
All position lamps not working \|1.1.A.3b\|	1
Nearside Rear Direction indicator not working \|1.4.A.2c\|	1
Horn not loud enough to be heard by another road user \|1.6.2b\|	1
Offside Front Suspension has inadequate clearance with the bump stop \|2.4.A.1a\|	1
Nearside Front Suspension has inadequate clearance with the bump stop \|2.4.A.1a\|	1
Front Brake pipe inadequately clipped \|3.6.B.1\|	1
Rear Fuel system component leaking \|7.2.3\|	1
Offside Front Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps \|1.7.4b\|	1
Fuel tank leaking \|7.2.3\|	1
Offside Front Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	1
Nearside Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	1
Offside Rear Position lamp not working (4.2.1 (a) (ii))	1
Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	1
Nearside Rear Brake pipe fouled by moving parts \|3.6.B.2a\|	1
Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	1
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	1
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	1
Nearside Rear Leaf spring to axle securing bolt insecure \|2.4.B.7b\|	1
Nearside Rear Leaf spring to axle securing nut missing \|2.4.B.7b\|	1
Rear Stop lamp not working \|1.2.1b\|	1
Nearside Front Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	1
Offside Front Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	1
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Upper Steering column shaft has excessive end float \|2.1.3\|	1
Nearside Front Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Nearside Rear Anti-roll bar attachment bracket/mounting damaged and its strength is seriously reduced \|2.4.G.1\|	1
Brake master cylinder/servo mounting prescribed area is excessively corroded \|3.6.C.3\|	1
Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))	1
Offside Front Service brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Rear Service brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Parking brake: efficiency below requirements \|3.7.B.7\|	1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Seat belt retracting mechanism defective \|5.2.5b\|	1
Offside Front Direction indicator not working \|1.4.A.2c\|	1
Steering system fouling \|2.2.D.2a\|	1
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	1
Parking brake: efficiency below requirements \|3.7.C.1b\|	1
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	1
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush \|2.4.B.2\|	1
Nearside Rear Brake pivot has restricted free movement \|3.5.1k\|	1
Offside Rear Brake pivot has restricted free movement \|3.5.1k\|	1
Headlamp not working on dipped beam \|1.7.5a\|	1
Headlamp not working on main beam \|1.7.5a\|	1
Nearside Front Suspension arm attachment bracket/mounting insecure \|2.4.G.1\|	1
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	1
Nearside Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	1
Steering system excessively tight \|2.2.D.1\|	1
Parking brake lever is fouling adjacent parts of the vehicle \|3.1.6b\|	1
Brake pipe inadequately supported \|3.6.B.1\|	1
Nearside Front Brake hose twisted \|found during steering lock to lock check\| \|2.2.D.2b\|	1
Offside Front Brake pipe inadequately clipped \|3.6.B.1\|	1
Offside Front Brake pipe fouled by moving parts \|3.6.B.2a\|	1
Nearside Front Headlamp not in a clean condition affecting beam image \|1.2.4a\|	1
Nearside Front Side repeater not working \|1.4.A.2c\|	1
Offside Front Side repeater not working \|1.4.A.2c\|	1
Offside Front Upper Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	1
Nearside Front brake caliper has restricted free movement \|3.5.1k\|	1

MOT History from tests of petrol MG M Gs year 1971

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