>

MOT History from tests of petrol MG MGB-GTs year 1978

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

mot history
Pass percent:59.82%
(The average a petrol MG MGB-GT year 1978 passes without issue)
Based on:112 MOT Tests
Most common failuresNo# failures
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|13
Windscreen wiper does not clear the windscreen effectively8
Rear parking brake recording little or no effort7
Registration plate lamp issues5
Brake pipe excessively corroded4
Parking brake: efficiency below requirements |3.7.B.7|4
Headlamp aim out of alignment4
Parking brake lever has no reserve travel |3.1.6b|3
Nearside Front Steering rack gaiter split |2.2.D.2d|3
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|3
Horn not working |1.6.2a|3
Brakes imbalanced across an axle3
Rear brake binding2
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|2
Exhaust engine idle speed too high |7.3.A.2a|2
Parking brake: efficiency below requirements |3.7.C.1b|2
Offside Stop lamp not working |1.2.1b|1
Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|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
Fuel system component leaking |7.2.3|1
Offside Driver`s door cannot be opened from outside the vehicle |6.2.B.1b|1
Brake hose excessively deteriorated1
Offside Front Steering rack gaiter split |2.2.D.2d|1
Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|1
Front Fuel hose leaking |7.2.3|1
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Front brake application uneven1
Mechanical brake component has restricted free movement1
Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2|1
Windscreen has damage1
Rear Brake hose leaking on a hydraulic braking system |1.1.12 |c| |ii||1
Direction indicators flashing less than 60 times a minute |1.4.A.2g|1
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Offside Front Lower Axle swivel pins and bushes swivel pin and/or bush excessively worn trunion (5.1.2 (b) (i))1
Offside Headlamp not working on dipped beam |4.1.1 |a| |ii||1
Offside Headlamp not working on main beam |4.1.1 |a| |ii||1
Nearside Headlamp not working on main beam |4.1.1 |a| |ii||1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Lower Steering pivot point has excessive play |2.2.B.1g|1
Nearside Front Shock absorber has a serious fluid leak |2.7.3|1
Nearside Front Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Offside Front Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Centre Rear Exhaust emits visible black smoke at idle |7.4.A.1|1
Nearside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c))1
Offside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c))1
Centre Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Rear position lamp|s| insecure |1.1.A.3a|1
Rear Exhaust system not adequately supported |7.1.1|1
Offside Steering arm has relative movement at its fixings |2.2.B.1h|1
Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|1
Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Nearside Rear Shock absorber insecure |2.7.2b|1
Offside Rear Fuel tank leaking |7.2.3|1
Offside Rear Leaf spring anchor bracket loose |2.4.B.6a|1
Nearside Inner Front Upper Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Inner Front Upper Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Driver`s seat insecure |6.2.A.1|1
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Lower Steering pivot point has excessive play |2.2.B.1g|1
Nearside Front Steering component mounting prescribed area is fractured |2.2.C.1h|1
Offside Front Steering component mounting prescribed area is fractured |2.2.C.1h|1
Offside Front Service brake grabbing severely |3.7.C.2|1
Service brake is causing the steering wheel to severely pull one way |3.7.C.2|1
Nearside Stop lamp not working |1.2.1b|1
Nearside Upper Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c|1
Brake actuating linkage mounting prescribed area is excessively corroded |3.3.A.2|1
Driver`s door cannot be opened from inside the vehicle |6.2.B.1b|1
Offside Front Lower Coil spring mounting corroded and seriously weakened |2.4.C.3c|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Offside Headlamp not working on dipped beam |1.7.5a|1
Nearside 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 Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Steering wheel retaining device insecure |2.1.6|1
Offside Front Steering system fouling |2.2.D.2a|1
Nearside Front Lower Suspension arm attachment bracket/mounting insecure |2.4.G.1|1
Nearside Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Track rod end ball joint has excessive play |2.2.B.1f|1
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|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.

Find us on Facebook

© KnowYourCar™ 2019. All rights reserved
Except where otherwise noted, content on our MOT statistics pages are licensed under a Creative Commons Attribution 4.0 International license.
You are free to redistribute the material in any medium or format as long as credit is given to KnowYourCar

WARNING: We have placed hidden watermarks in our data. We will take action against our data being used outside of these terms.

MOT Data licensed under the Open Government Licence v3.0

By using our site you are agreeing to our terms and conditions
Terms & Conditions  Privacy Policy