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MOT History from tests of petrol MG B GTs year 1974

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:72.72%
(The average a petrol MG B GT year 1974 passes without issue)
Based on:4,831 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment186
Parking brake: efficiency below requirements |3.7.B.7|179
Registration plate lamp issues140
Horn not working |1.6.2a|134
Windscreen wiper does not clear the windscreen effectively102
Rear brake binding102
Brakes imbalanced across an axle92
Rear parking brake recording little or no effort92
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|81
Nearside Stop lamp not working |1.2.1b|59
Offside Stop lamp not working |1.2.1b|53
Offside Steering rack gaiter split |2.2.D.2d|48
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|47
Registration plate issues47
Nearside Steering rack gaiter split |2.2.D.2d|45
Rear brake application uneven43
Nearside Front position lamp|s| not working |1.1.A.3b|40
Parking brake lever has no reserve travel |3.1.6b|37
Brake pipe excessively corroded35
Offside Front position lamp|s| not working |1.1.A.3b|31
Nearside Headlamp not working on dipped beam |1.7.5a|29
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|29
Hazard warning switch faulty |1.4.B.1d|26
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|25
Service brake: efficiency below requirements |3.7.B.7|23
Offside Rear Stop lamp not working |1.2.1b|22
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|21
Brake hose excessively deteriorated20
Direction indicators not working |1.4.A.2c|20
Nearside Front Shock absorber has a serious fluid leak |2.7.3|20
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|20
Offside front brake binding |3.7.B.1|20
Nearside front brake binding |3.7.B.1|19
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|19
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|19
Fuel system component leaking |7.2.3|18
Nearside Rear Stop lamp not working |1.2.1b|18
Offside Front Front position lamp|s| not working |1.1.A.3b|17
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|17
Offside Headlamp not working on dipped beam |1.7.5a|16
Nearside Front Steering rack gaiter split |2.2.D.2d|16
Offside Front Steering rack gaiter split |2.2.D.2d|16
Driver`s seat insecure |6.2.A.1|15
Offside Headlamp not working on main beam |1.7.5a|15
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|15
Offside Front Shock absorber has a serious fluid leak |2.7.3|15
Nearside Headlamp not working on main beam |1.7.5a|14
Stop lamp not working |1.2.1b|14
Parking brake efficiency below requirements (1.4.2 (a) (i))13
Offside Front Direction indicator not working |1.4.A.2c|13
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|13
Nearside Front Direction indicator not working |1.4.A.2c|13
Offside Rear Shock absorber has a serious fluid leak |2.7.3|13
Nearside rear brake recording little or no effort |3.7.B.5a|12
Offside rear brake recording little or no effort |3.7.B.5a|11
Direction indicators flashing less than 60 times a minute |1.4.A.2g|11
Hazard warning lamps inoperative |1.4.B.1b|11
Mechanical brake component has restricted free movement11
Exhaust has a major leak of exhaust gases |7.1.2|11
Nearside Front Headlamp not working on main beam |1.7.5a|11
Offside Front Headlamp not working on main beam |1.7.5a|11
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|11
Windscreen washer not working 10
Offside Rear rear brake recording little or no effort |3.7.B.5a|10
Front brake application uneven10
Nearside Front Front position lamp|s| not working |1.1.A.3b|10
Rear Exhaust system not adequately supported |7.1.1|10
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|10
Front Exhaust has a major leak of exhaust gases |7.1.2|10
Nearside Rear position lamp|s| not working |1.1.A.3b|10
Parking brake: efficiency below requirements |3.7.C.1b|9
Offside Rear position lamp|s| not working |1.1.A.3b|9
Centre Exhaust system not adequately supported |7.1.1|9
Battery insecure |1.9.1|9
Brake pedal spongy |3.3.B.1b|9
Nearside Front front brake binding |3.7.B.1|9
Offside Front wheel bearing rough when rotated |2.5.A.2|9
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|9
Brake hose has insufficient room to move8
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|8
Centre Exhaust has a major leak of exhaust gases |7.1.2|8
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|8
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|8
Steering wheel retaining device insecure |2.1.6|8
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|8
Nearside Windscreen wiper not operating automatically when switched on |8.2.1b|8
Stop lamp(s) all not working (4.3.1 (a) (iii))8
Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|8
Headlamp switch faulty |1.7.1|8
Direction indicators flashing more than 120 times a minute |1.4.A.2g|8
Front Windscreen wiper not operating automatically when switched on |8.2.1b|8
Rear Stop lamp not working |1.2.1b|8
Offside Front Shock absorber has negligible damping effect |2.7.5|7
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Exhaust system not adequately supported |7.1.1|7
Hazard warning tell tale not working correctly |1.4.B.1e|7
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|7
Offside Windscreen wiper not operating automatically when switched on |8.2.1b|7
Offside Front Headlamp not working on dipped beam |1.7.5a|7
Nearside Front Seat belt retracting mechanism defective |5.2.5b|7
Brake performance not tested |3.7.A.1|7
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|7
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|7
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|7
Offside Front front brake binding |3.7.B.1|7
Fuel hose leaking |7.2.3|6
All position lamps not working |1.1.A.3b|6
Nearside Headlamp insecure |1.7.3|6
Steering column movement between the shaft and steering wheel |2.1.2b|6
Brake pedal anti-slip provision missing |3.3.A.1b|6
Windscreen has damage6
Nearside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|6
Rear Mechanical brake component has restricted free movement6
Nearside Rear rear brake recording little or no effort |3.7.B.5a|6
Nearside Windscreen wiper blade deteriorated |8.2.2|6
Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|6
Rear Fuel system component leaking |7.2.3|6
Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a|6
Nearside Rear Vehicle structure 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|6
Steering column shaft has excessive end float |2.1.3|6
Offside Front Seat belt retracting mechanism defective |5.2.5b|6
Offside Front Front wheel bearing has excessive play |2.5.A.3c|6
Speedometer cannot be illuminated. |6.7.3|5
Offside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|5
Headlamp not working on main beam |1.7.5a|5
Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1|5
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|5
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|5
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Stop lamp remains on when the brakes are released5
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Nearside Front Headlamp not working on dipped beam |1.7.5a|5
Horn not loud enough to be heard by another road user |1.6.2b|5
Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3|5
Windscreen wiper not operating automatically when switched on |8.2.1b|5
Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i))5
Nearside Indicator tell tale inoperative |1.4.A.2a|5
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|5
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|5
Rear Exhaust has a major leak of exhaust gases |7.1.2|5
Front brake disc in such a condition that it is seriously weakened5
Offside Front Front wheel bearing rough when rotated |2.5.A.2|5
Offside Windscreen wiper blade deteriorated |8.2.2|5
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|5
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Front Headlamp not working on dipped beam |1.7.5a|5
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|4
Nearside Headlamp aim beam image kick up to the offside |1.8|4
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|4
Nearside Track rod end ball joint has excessive play |2.2.B.1f|4
Nearside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|4
Offside Track rod end ball joint has excessive play |2.2.B.1f|4
Offside Rear wheel bearing has excessive play |2.6.2|4
Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|4
Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|4
Nearside Rear wheel cylinder leaking |3.6.A.1|4
Offside Rear Leaf spring deteriorated and seriously weakened |2.4.B.1a|4
Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|4
Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|4
Offside Headlamp insecure |1.7.3|4
Offside Front coil spring broken |2.4.C.1a|4
Nearside Front Direction indicators not working |1.4.A.2c|4
Position lamp switch faulty |1.1.A.1|4
Nearside Front Shock absorber has negligible damping effect |2.7.5|4
Offside Front Driver`s seat insecure |6.2.A.1|4
Front Headlamp not working on main beam |1.7.5a|4
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|4
Offside Rear Direction indicator not working |1.4.A.2c|4
Offside Front Position lamp not working (4.2.1 (a) (ii))4
Nearside Seat belt locking mechanism does not secure or release |5.2.5a|4
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|4
Offside Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3|4
Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|4
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|4
Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|4
Horn not working |7.7 |a| |ii||4
Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b|4
Nearside Rear Position lamp not working (4.2.1 (a) (ii))4
Nearside Rear Braking system leaking |3.6.A.1|4
Offside Rear Service brake excessively binding (1.2.1 (f))4
Indicator switch faulty |1.4.A.1|4
Brake pedal creeps down when held under pressure |3.3.B.1a|4
Offside Front Direction indicators not working |1.4.A.2c|4
Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))4
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|4
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Offside Front wheel bearing has excessive play |2.5.A.3c|4

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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