MOT History from tests of petrol MG B GTs year 1966

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

mot history

Pass percent:72.12%

(The average a petrol MG B GT year 1966 passes without issue)

Based on:1,417 MOT Tests

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	93
Headlamp aim out of alignment	72
Windscreen wiper does not clear the windscreen effectively	44
Brakes imbalanced across an axle	38
Rear parking brake recording little or no effort	37
Rear brake binding	36
Horn not working \|1.6.2a\|	30
Registration plate lamp issues	29
Nearside Stop lamp not working \|1.2.1b\|	19
Brake hose excessively deteriorated	18
Offside Steering rack gaiter split \|2.2.D.2d\|	16
Rear brake application uneven	15
Offside Stop lamp not working \|1.2.1b\|	14
Nearside Steering rack gaiter split \|2.2.D.2d\|	13
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	12
Offside Headlamp not working on main beam \|1.7.5a\|	11
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	10
Service brake: efficiency below requirements \|3.7.B.7\|	10
Offside Rear Wheel insecure \|4.2.A.1c\|	9
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Fuel system component leaking \|7.2.3\|	8
Nearside Rear Wheel insecure \|4.2.A.1c\|	7
Registration plate issues	7
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Offside Headlamp not working on dipped beam \|1.7.5a\|	7
Nearside Headlamp not working on main beam \|1.7.5a\|	7
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	6
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	6
Offside Front Steering rack gaiter split \|2.2.D.2d\|	6
Parking brake: efficiency below requirements \|3.7.C.1b\|	6
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	6
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	5
Offside Front Wheel insecure \|4.2.A.1c\|	5
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	5
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	5
Nearside Front Direction indicator not working \|1.4.A.2c\|	5
Stop lamp not working \|1.2.1b\|	5
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	5
Nearside Front Wheel insecure \|4.2.A.1c\|	5
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	5
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	5
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	5
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	5
Offside rear brake recording little or no effort \|3.7.B.5a\|	5
Offside Front Direction indicator not working \|1.4.A.2c\|	4
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	4
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	4
Parking brake efficiency below requirements \|1.4.2 \|a\| \|i\|\|	4
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	4
Nearside Headlamp not working on dipped beam \|1.7.5a\|	4
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	4
Direction indicators not working \|1.4.A.2c\|	4
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	4
Rear Exhaust system not adequately supported \|7.1.1\|	3
Horn not loud enough to be heard by another road user \|1.6.2b\|	3
Exhaust emits excessive dense blue smoke during acceleration \|7.3.A.2c\|	3
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Nearside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	3
Offside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	3
Offside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	3
Windscreen washer not working	3
Battery insecure \|1.9.1\|	3
Nearside Front Headlamp not working on main beam \|1.7.5a\|	3
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	3
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	3
Brake pedal anti-slip provision missing \|3.3.A.1b\|	3
Nearside Rear front brake binding \|3.7.B.1\|	3
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	3
Offside Indicator tell tale inoperative \|1.4.A.2a\|	3
Offside Rear Stop lamp not working \|1.2.1b\|	3
Driver`s door cannot be opened from inside the vehicle \|6.2.B.1b\|	3
Hazard warning tell tale not working correctly \|1.4.B.1e\|	3
Parking brake lever has no reserve travel \|3.1.6b\|	3
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	3
Indicator tell tale inoperative \|1.4.A.2a\|	3
Brake pipe excessively corroded	3
Parking brake efficiency below requirements (1.4.2 (a) (i))	3
Offside Front Brake pipe inadequately supported \|3.6.B.1\|	2
Offside Direction indicator not working \|1.4.A.2c\|	2
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	2
Nearside Rear wheel cylinder leaking \|3.6.A.1\|	2
Offside Rear wheel cylinder leaking \|3.6.A.1\|	2
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))	2
Nearside Rear Wheel nut\|s\| loose \|4.2.A.1e\|	2
Electrical wiring insecure \|1.9.2a\|	2
Offside Rear Wheel nut\|s\| loose \|4.2.A.1e\|	2
Offside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	2
Nearside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	2
An item not tested \|Manual\|	2
Offside Front Headlamp not working on main beam \|1.7.5a\|	2
Offside Rear Direction indicator not working \|1.4.A.2c\|	2
Nearside Indicator tell tale inoperative \|1.4.A.2a\|	2
Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	2
Offside Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	2
Nearside Front front brake binding \|3.7.B.1\|	2
Steering wheel retaining device insecure \|2.1.6\|	2
Headlamp not working on main beam \|1.7.5a\|	2
Horn not working (7.7 (a))	2
Nearside front brake binding \|3.7.B.1\|	2
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	2
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	2
Nearside Rear wheel bearing has excessive play \|2.6.2\|	2
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	2
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	2
Offside Front front brake binding \|3.7.B.1\|	2
Nearside Rear Braking system leaking \|3.6.A.1\|	2
Exhaust has a major leak of exhaust gases \|7.1.2\|	2
Rear rear brakes release unevenly \|3.7.B.4\|	2
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Indicator switch faulty \|1.4.A.1\|	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Brake performance not tested \|3.7.A.1\|	2
Offside Front Road wheel spoke excessively loose \|4.2.A.1b\|	2
Nearside Front Road wheel distorted \|4.2.A.1a\|	2
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Hazard warning switch faulty \|1.4.B.1d\|	2
Offside Rear Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	2
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	2
Stop lamp remains on when the brakes are released	2
Driver`s seat insecure \|6.2.A.1\|	2
Steering column movement between the shaft and steering wheel \|2.1.2b\|	2
Offside Front Brake pipe inadequately clipped \|3.6.B.1\|	2
All position lamps not working \|1.1.A.3b\|	2
Service brake: efficiency below requirements \|3.7.C.1a\|	2
Nearside Front Passenger`s seat cannot be secured in the upright position. \|6.2.A.2\|	2
Rear Mechanical brake component has restricted free movement	2
Dipswitch operation does not deflect all main beam headlamps to make them dipped beams \|1.7.4b\|	2
Mechanical brake component has restricted free movement	2
Nearside rear brake recording little or no effort \|3.7.B.5a\|	2
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	2
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Driver`s seat cannot be secured in the upright position. \|6.2.A.2\|	2
Front passenger seat cannot be secured in the upright position. \|6.2.4\|	2
Parking brake: efficiency below requirements \|3.7.D.4\|	2
Nearside Rear Rear wheel bearing has excessive play \|2.6.2\|	2
Headlamp switch faulty \|1.7.1\|	2
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Steering system fouling \|2.2.D.2a\|	2
Nearside Front brake disc excessively pitted \|3.5.1h\|	2
Offside Front brake disc excessively pitted \|3.5.1h\|	2
Offside Front Statutory seat belt missing \|5.1.1\|	2
rear parking \|secondary\| brakes imbalanced	2
Offside Front Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	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.

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	93
Headlamp aim out of alignment	72
Windscreen wiper does not clear the windscreen effectively	44
Brakes imbalanced across an axle	38
Rear parking brake recording little or no effort	37
Rear brake binding	36
Horn not working \|1.6.2a\|	30
Registration plate lamp issues	29
Nearside Stop lamp not working \|1.2.1b\|	19
Brake hose excessively deteriorated	18
Offside Steering rack gaiter split \|2.2.D.2d\|	16
Rear brake application uneven	15
Offside Stop lamp not working \|1.2.1b\|	14
Nearside Steering rack gaiter split \|2.2.D.2d\|	13
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	12
Offside Headlamp not working on main beam \|1.7.5a\|	11
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	10
Service brake: efficiency below requirements \|3.7.B.7\|	10
Offside Rear Wheel insecure \|4.2.A.1c\|	9
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Fuel system component leaking \|7.2.3\|	8
Nearside Rear Wheel insecure \|4.2.A.1c\|	7
Registration plate issues	7
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Offside Headlamp not working on dipped beam \|1.7.5a\|	7
Nearside Headlamp not working on main beam \|1.7.5a\|	7
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	6
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	6
Offside Front Steering rack gaiter split \|2.2.D.2d\|	6
Parking brake: efficiency below requirements \|3.7.C.1b\|	6
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	6
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	5
Offside Front Wheel insecure \|4.2.A.1c\|	5
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	5
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	5
Nearside Front Direction indicator not working \|1.4.A.2c\|	5
Stop lamp not working \|1.2.1b\|	5
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	5
Nearside Front Wheel insecure \|4.2.A.1c\|	5
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	5
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	5
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	5
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	5
Offside rear brake recording little or no effort \|3.7.B.5a\|	5
Offside Front Direction indicator not working \|1.4.A.2c\|	4
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	4
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	4
Parking brake efficiency below requirements \|1.4.2 \|a\| \|i\|\|	4
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	4
Nearside Headlamp not working on dipped beam \|1.7.5a\|	4
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	4
Direction indicators not working \|1.4.A.2c\|	4
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering \|2.5.A.3a\|	4
Rear Exhaust system not adequately supported \|7.1.1\|	3
Horn not loud enough to be heard by another road user \|1.6.2b\|	3
Exhaust emits excessive dense blue smoke during acceleration \|7.3.A.2c\|	3
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Nearside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	3
Offside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	3
Offside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	3
Windscreen washer not working	3
Battery insecure \|1.9.1\|	3
Nearside Front Headlamp not working on main beam \|1.7.5a\|	3
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	3
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	3
Brake pedal anti-slip provision missing \|3.3.A.1b\|	3
Nearside Rear front brake binding \|3.7.B.1\|	3
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	3
Offside Indicator tell tale inoperative \|1.4.A.2a\|	3
Offside Rear Stop lamp not working \|1.2.1b\|	3
Driver`s door cannot be opened from inside the vehicle \|6.2.B.1b\|	3
Hazard warning tell tale not working correctly \|1.4.B.1e\|	3
Parking brake lever has no reserve travel \|3.1.6b\|	3
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	3
Indicator tell tale inoperative \|1.4.A.2a\|	3
Brake pipe excessively corroded	3
Parking brake efficiency below requirements (1.4.2 (a) (i))	3
Offside Front Brake pipe inadequately supported \|3.6.B.1\|	2
Offside Direction indicator not working \|1.4.A.2c\|	2
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	2
Nearside Rear wheel cylinder leaking \|3.6.A.1\|	2
Offside Rear wheel cylinder leaking \|3.6.A.1\|	2
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))	2
Nearside Rear Wheel nut\|s\| loose \|4.2.A.1e\|	2
Electrical wiring insecure \|1.9.2a\|	2
Offside Rear Wheel nut\|s\| loose \|4.2.A.1e\|	2
Offside Rear Suspension spring mounting prescribed area is inadequately repaired \|2.4.A.3\|	2
Nearside Front Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	2
An item not tested \|Manual\|	2
Offside Front Headlamp not working on main beam \|1.7.5a\|	2
Offside Rear Direction indicator not working \|1.4.A.2c\|	2
Nearside Indicator tell tale inoperative \|1.4.A.2a\|	2
Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement \|2.4.B.2\|	2
Offside Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	2
Nearside Front front brake binding \|3.7.B.1\|	2
Steering wheel retaining device insecure \|2.1.6\|	2
Headlamp not working on main beam \|1.7.5a\|	2
Horn not working (7.7 (a))	2
Nearside front brake binding \|3.7.B.1\|	2
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	2
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	2
Nearside Rear wheel bearing has excessive play \|2.6.2\|	2
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	2
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	2
Offside Front front brake binding \|3.7.B.1\|	2
Nearside Rear Braking system leaking \|3.6.A.1\|	2
Exhaust has a major leak of exhaust gases \|7.1.2\|	2
Rear rear brakes release unevenly \|3.7.B.4\|	2
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Indicator switch faulty \|1.4.A.1\|	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Brake performance not tested \|3.7.A.1\|	2
Offside Front Road wheel spoke excessively loose \|4.2.A.1b\|	2
Nearside Front Road wheel distorted \|4.2.A.1a\|	2
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Hazard warning switch faulty \|1.4.B.1d\|	2
Offside Rear Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	2
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	2
Stop lamp remains on when the brakes are released	2
Driver`s seat insecure \|6.2.A.1\|	2
Steering column movement between the shaft and steering wheel \|2.1.2b\|	2
Offside Front Brake pipe inadequately clipped \|3.6.B.1\|	2
All position lamps not working \|1.1.A.3b\|	2
Service brake: efficiency below requirements \|3.7.C.1a\|	2
Nearside Front Passenger`s seat cannot be secured in the upright position. \|6.2.A.2\|	2
Rear Mechanical brake component has restricted free movement	2
Dipswitch operation does not deflect all main beam headlamps to make them dipped beams \|1.7.4b\|	2
Mechanical brake component has restricted free movement	2
Nearside rear brake recording little or no effort \|3.7.B.5a\|	2
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	2
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Driver`s seat cannot be secured in the upright position. \|6.2.A.2\|	2
Front passenger seat cannot be secured in the upright position. \|6.2.4\|	2
Parking brake: efficiency below requirements \|3.7.D.4\|	2
Nearside Rear Rear wheel bearing has excessive play \|2.6.2\|	2
Headlamp switch faulty \|1.7.1\|	2
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Steering system fouling \|2.2.D.2a\|	2
Nearside Front brake disc excessively pitted \|3.5.1h\|	2
Offside Front brake disc excessively pitted \|3.5.1h\|	2
Offside Front Statutory seat belt missing \|5.1.1\|	2
rear parking \|secondary\| brakes imbalanced	2
Offside Front Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2

MOT History from tests of petrol MG B GTs year 1966

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