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MOT History from tests of petrol MG GTs year 1979

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

mot history
Pass percent:67.53%
(The average a petrol MG GT year 1979 passes without issue)
Based on:194 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment16
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|12
Rear brake binding8
Parking brake: efficiency below requirements |3.7.B.7|7
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|6
Windscreen wiper does not clear the windscreen effectively6
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|5
Hazard warning switch faulty |1.4.B.1d|5
Brakes imbalanced across an axle4
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Registration plate lamp issues4
Service brake: efficiency below requirements |3.7.B.7|3
Registration plate issues3
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Rear parking brake recording little or no effort3
Offside rear brake recording little or no effort |3.7.B.5a|2
Hazard warning lamps inoperative |1.4.B.1b|2
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
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|2
Offside Rear position lamp|s| not working |1.1.A.3b|2
Nearside Steering rack gaiter split |2.2.D.2d|2
Offside Steering rack gaiter split |2.2.D.2d|2
Exhaust has a major leak of exhaust gases |7.1.2|2
Fuel tank leaking |7.2.3|2
Direction indicators not working |1.4.A.2c|2
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|2
Horn not working |1.6.2a|2
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))2
Offside Front Position lamp not working |4.2.1 |a||1
Nearside Rear Position lamp not working |4.2.1 |a||1
Fuel pipe leaking pump banjos |6.1.3 |b| |i||1
Hazard warning switch faulty Not working |1.4.B.1d|1
Hazard warning lamps not fitted |1.4.B.1a|1
Offside Rear Braking system leaking Across axle burst on test |3.6.A.1|1
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings Floor hold |6.1.B.2|1
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
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|1
Nearside Front Track rod end loose |2.2.B.1d|1
Offside Front Track rod end loose |2.2.B.1d|1
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|1
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Front Body insecure and dangerous to other road users |6.1.B.1b|1
Nearside Front Direction indicators not working |1.4.A.2c|1
Offside Rear Direction indicators not working |1.4.A.2c|1
Nearside Front Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Offside Rear Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Inner Rear Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Steering system excessively rough |2.2.D.1|1
Offside Seat belt anchorage prescribed area is excessively corroded door step |5.2.6|1
Nearside Seat belt anchorage prescribed area is excessively corroded outer sill |5.2.6|1
Offside Seat belt anchorage prescribed area is excessively corroded outer sill |5.2.6|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded outer sill |2.4.A.3|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded outer sill |2.4.A.3|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded inner sill |2.4.A.3|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded inner sill |2.4.A.3|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded inner wing |2.4.A.3|1
Nearside Suspension component mounting prescribed area is excessively corroded centre/outer cross member |2.4.A.3|1
Nearside Suspension component mounting prescribed area is excessively corroded front and rear outer castle sections |2.4.A.3|1
Offside Suspension component mounting prescribed area is excessively corroded front and rear outer castle sections |2.4.A.3|1
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Lower Suspension arm attachment bracket/mounting worn and its strength is seriously reduced trunion bolt hole e-longaited |2.4.G.1|1
Centre Exhaust system not adequately supported |7.1.1|1
Nearside Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Body or chassis is damaged, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Direction indicator not working |1.4.A.2c|1
Offside Front position lamp|s| not working |1.1.A.3b|1
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 Upper Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Offside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|1
Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||1
Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii||1
Rear rear brake recording little or no effort |3.7.B.5a|1
Rear brake application uneven1
Brake hose excessively deteriorated1
Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|1
Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c||1
Fuel pipe leaking |6.1.3 |b| |i||1
Offside front brake binding |3.7.B.1|1
Offside Front Direction indicator not working |1.4.A.2c|1
All position lamps not working |1.1.A.3b|1
Front Headlamp does not operate immediately when selected on dipped beam |1.7.4a|1
Front Headlamp does not operate immediately when selected on main beam |1.7.4a|1
Rear Brake hose excessively damaged |1.1.12 |b| |ii||1
Nearside Front Suspension component pin or bush excessively worn |5.3.4 |a| |i||1
Service brake efficiency below requirements |1.2.2 |a| |i||1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Rear fog lamp not working |1.3.2b|1
Main beam `tell-tale` not working |1.7.4c|1
Nearside Front wheel bearing has excessive play |2.5.A.3c|1
Rear Exhaust system not adequately supported |7.1.1|1
Offside Headlamp not working on main beam |1.7.5a|1
Nearside Rear rear brake recording little or no effort |3.7.B.5a|1
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Driver`s seat insecure |6.2.A.1|1
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Rear Mechanical brake component has restricted free movement1
Nearside Rear Inner Seat belt anchorage prescribed area is excessively corroded sill |5.2.6|1
Nearside Front Passenger`s seat insecure |6.2.A.1|1
Offside Headlamp aim beam image kick up to the offside |1.8|1
Front Exhaust system not adequately supported |7.1.1|1
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Leaf spring fractured |2.4.B.1a|1
Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Steering pivot point has excessive play |2.2.B.1g|1
Offside Steering pivot point has excessive play |2.2.B.1g|1
Steering locking device missing |2.2.C.1g|1
Nearside Stop lamp not working |1.2.1b|1
Offside Stop lamp not working |1.2.1b|1
Nearside Rear Brake pipe inadequately clipped |3.6.B.1|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Nearside front brake binding |3.7.B.1|1
Offside Front Fluid suspension unit leaking |2.4.D.2|1
Brake pipe excessively corroded1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded wing |2.4.A.3|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded Valence and body |2.4.A.3|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Horn sounds harsh or grating |1.6.2e|1
Rear Fuel system component leaking |7.2.3|1
Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))1
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))1
Nearside Front Service brake excessively binding (1.2.1 (f))1
Offside Front Service brake excessively binding (1.2.1 (f))1
Fuel system component leaking (6.1.3 (b) (i))1
Nearside Front Direction indicator not working (4.4.1 (a) (ii))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.

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