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MOT History from tests of petrol MG ROADSTERs year 1978

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

mot history
Pass percent:72.16%
(The average a petrol MG ROADSTER year 1978 passes without issue)
Based on:679 MOT Tests
Most common failuresNo# failures
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|34
Headlamp aim out of alignment31
Brakes imbalanced across an axle18
Windscreen wiper does not clear the windscreen effectively15
Rear brake binding14
Registration plate lamp issues14
Rear parking brake recording little or no effort14
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|14
Parking brake: efficiency below requirements |3.7.B.7|12
Brake pipe excessively corroded10
Nearside Front position lamp|s| not working |1.1.A.3b|9
Direction indicators not working |1.4.A.2c|8
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|8
Rear brake application uneven7
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|6
Registration plate issues6
Brake hose excessively deteriorated6
Horn not working |1.6.2a|5
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|5
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|5
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||4
Offside Headlamp not working on dipped beam |1.7.5a|4
Offside Headlamp not working on main beam |1.7.5a|4
Nearside Steering rack gaiter split |2.2.D.2d|4
Battery insecure |1.9.1|4
Parking brake lever has no reserve travel |3.1.6b|4
Offside Rear Shock absorber has a serious fluid leak |2.7.3|4
Offside Rear Stop lamp not working |1.2.1b|4
Nearside rear brake recording little or no effort |3.7.B.5a|4
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Steering rack gaiter split |2.2.D.2d|3
Nearside Rear rear brake recording little or no effort |3.7.B.5a|3
Offside Front Direction indicator not working |1.4.A.2c|3
Direction indicators flashing less than 60 times a minute |1.4.A.2g|3
Nearside Headlamp not working on dipped beam |1.7.5a|3
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside Front Shock absorber has negligible damping effect |2.7.5|3
Offside rear brake recording little or no effort |3.7.B.5a|3
Service brake: efficiency below requirements |3.7.B.7|3
Offside Front position lamp|s| not working |1.1.A.3b|3
Hazard warning switch faulty |1.4.B.1d|3
Front Exhaust has a major leak of exhaust gases |7.1.2|3
Nearside Rear position lamp|s| not working |1.1.A.3b|3
Nearside Stop lamp not working |1.2.1b|3
Offside Stop lamp not working |1.2.1b|3
Nearside Headlamp not working on main beam |1.7.5a|3
Windscreen has damage3
Fuel system component leaking |7.2.3|3
Nearside Rear Stop lamp not working |1.2.1b|3
Nearside Rear Direction indicator not working |1.4.A.2c|2
Nearside Front Direction indicator not working |1.4.A.2c|2
Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|2
Offside Rear Direction indicator not working |1.4.A.2c|2
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Exhaust engine idle speed too high |7.3.A.2a|2
Parking brake efficiency below requirements |1.4.2 |a| |i||2
All position lamps not working |1.1.A.3b|2
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|2
Nearside Steering pivot point has excessive play |2.2.B.1g|2
Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|2
Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a|2
Offside Front Brake hose leaking |3.6.A.1|2
Offside Rear Brake pipe inadequately clipped |3.6.B.1|2
Rear Exhaust system not adequately supported |7.1.1|2
Brake performance not tested |3.7.A.1|2
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Windscreen wiper blade insecure2
Hazard warning lamps inoperative |1.4.B.1b|2
Nearside Front Steering rack gaiter split |2.2.D.2d|2
Emissions not tested |7.0|2
Fuel tank leaking |7.2.3|2
Steering wheel retaining device insecure |2.1.6|2
Nearside Front Direction indicator incorrect colour |1.4.A.2f|1
Rear Exhaust has a major leak of exhaust gases |6.1.2 |a||1
Nearside Front Suspension arm attachment bracket/mounting fractured |2.4.G.1|1
Nearside Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|1
Stop lamp not working |1.2.1b|1
Nearside Rear Braking system leaking |3.6.A.1|1
Offside Front Direction indicators flashing less than 60 times a minute |1.4.A.2g|1
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Nearside Front passenger door cannot be opened from inside the vehicle |6.2.3 |a||1
Offside Front Track rod end loose |2.2.B.1d|1
Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Nearside Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Offside Front Suspension component mounting prescribed area is excessively corroded chassis as marked |2.4.A.3|1
Offside Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b|1
Offside Stop lamp(s) not working (4.3.1 (a) (ii))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Nearside Rear Service brake excessively binding (1.2.1 (f))1
Nearside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Central Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Central Rear Exhaust system not adequately supported |7.1.1|1
Offside Rear Service brake excessively binding |1.2.1 |f||1
Position lamp switch does not illuminate the front and rear position lamps with a single operation |1.1.A.2|1
Headlamp switch faulty |1.7.1|1
Nearside front brake binding |3.7.B.1|1
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|1
Nearside Front Steering rack gaiter insecure |2.2.D.2d|1
Brake pedal anti-slip provision missing |3.3.A.1b|1
Hazard warning tell tale not working correctly |1.4.B.1e|1
Offside Windscreen wiper blade deteriorated |8.2.2|1
Position lamp switch does not operate in accordance with the requirements (4.2.2 (a))1
Exhaust has a major leak of exhaust gases Down pipe to centre section |7.1.2|1
Offside Indicator tell tale inoperative |1.4.A.2a|1
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|1
Speedometer cannot be illuminated. |6.7.3|1
Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Offside Front Brake hose twisted |3.6.B.4c|1
Nearside Front Axle has inadequate clearance with the bump stop |2.4.A.1a|1
Offside Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i||1
Offside Service brake excessively binding |1.2.1 |f||1
Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside front brake binding |3.7.B.1|1
Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Front Shock absorber has a serious fluid leak |2.7.3|1
Nearside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Offside Front Headlamp not working on dipped beam |1.7.5a|1
Nearside Front Headlamp not working on main beam |1.7.5a|1
Offside Front Headlamp not working on main beam |1.7.5a|1
Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Rear position lamp|s| not working Both rear pos |1.1.A.3b|1
Offside Steering pivot point has excessive play |2.2.B.1g|1
Offside Front Front wheel bearing has excessive play |2.5.A.3c|1
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings Inner sill |6.1.B.2|1
Offside Rear Inner Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Battery insecure Tray corroded |1.9.1|1
Exhaust emissions carbon monoxide content excessive 9.5 |7.3.B.1a|1
Nearside Front front brake recording little or no effort |3.7.B.5a|1
Nearside Rear Leaf spring shackle bracket loose (2.4.B.6a)1
Nearside Front Fuel system component leaking (7.2.3)1
Exhaust emissions carbon monoxide content excessive (7.3.B.1a)1
Exhaust emissions hydrocarbon content excessive (7.3.B.1b)1
Offside Rear Brake pipe fouled by moving parts (3.6.B.2a)1
Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|1
Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i||1
Offside Rear Leaf spring fractured |2.4.B.1a|1
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front Brake hose leaking |3.6.A.1|1
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Front Brake pipe inadequately clipped |3.6.B.1|1
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Service brake: efficiency below requirements |3.7.D.4|1
Parking brake: efficiency below requirements |3.7.D.4|1
Nearside Seat belt has a cut which has significantly weakened the webbing |5.2.2a|1
Offside Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Front Direction indicators not working |1.4.A.2c|1
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Windscreen wiper blade deteriorated |8.2.2|1
Offside Front Front suspension has excessive play in a pin or bush of an upper wishbone inner bearing |2.5.B.1a|1
Nearside Front Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c|1
Offside Rear Shock absorber has an excessively worn linkage |2.7.4|1
Driver`s seat cannot be secured in the upright position. |6.2.A.2|1
Nearside Front Suspension arm attachment bracket/mounting insecure |2.4.G.1|1
Rear Brake cable has a seized clevis joint pivot |3.5.1c|1
Nearside Steering component mounting prescribed area is excessively corroded |2.2.C.1h|1
Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b|1
Nearside Front wheel bearing has excessive play |2.5.A.3c|1
Offside Front Side repeater not working |1.4.A.2c|1
Nearside Track rod end loose |2.2.B.1d|1
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Direction indicators not in good working order |function impaired| |1.5.A1b|1
Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Brake master cylinder leaking hydraulic fluid |3.6.G.1f|1
Brake master cylinder fluid level below minimum level |3.6.G.1e|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Offside Front Driver`s seat insecure |6.2.A.1|1
Nearside Inner Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Outer Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Horn not loud enough to be heard by another road user |1.6.2b|1
Offside Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front suspension has excessive play in a pin or bush of a lower wishbone inner bearing |2.5.B.1a|1
Exhaust mounting missing |7.1.1b|1
Nearside Outer Seat belt anchorage prescribed area is inadequately repaired |5.2.6|1
Offside Inner Seat belt anchorage prescribed area is inadequately repaired |5.2.6|1
Offside Inner Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|1
Nearside Indicator tell tale inoperative |1.4.A.2a|1
Steering column shaft has excessive end float |2.1.3|1
Nearside Front Lower Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Nearside Rear Brake pipe seriously damaged |found during steering lock to lock check| |2.2.D.2b|1
Offside Rear Brake pipe seriously damaged |found during steering lock to lock check| |2.2.D.2b|1
Nearside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Front Fuel pipe leaking |7.2.3|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Front Front wheel bearing has excessive play |2.5.A.3c|1
Nearside Front Wheel insecure |4.2.A.1c|1
Offside Front Wheel insecure |4.2.A.1c|1
Nearside Rear Wheel insecure |4.2.A.1c|1
Offside Rear Wheel insecure |4.2.A.1c|1
Upper Horn control insecure |1.6.1|1
Indicator switch insecure |1.4.A.1|1
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))1
Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c|1
Brake servo vacuum pipe deteriorated |3.6.C.1b|1
Nearside Front Shock absorber insecure |2.7.2b|1
Emissions not tested (8.2.1.2 (d))1
Front wheel bearing has excessive play |2.5.A.3c|1
Offside Rear Road wheel spoke excessively loose |4.2.A.1b|1
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Driver`s seat insecure |6.2.A.1|1
Nearside Front Passenger`s seat insecure |6.2.A.1|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 Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Obligatory mirror missing |8.1.1|1
Nearside Front Suspension arm has excessive play in a ball joint Bottom ball joint |2.4.G.2|1
Offside Front Suspension arm has excessive play in a ball joint Bottom ball joint |2.4.G.2|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
Exhaust system not adequately supported |7.1.1|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
Steering pivot point has excessive play |2.2.B.1g|1
Nearside Front Wheel hub spigot mounting excessively worn |4.2.B.5|1
Offside Rear Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i||1
Offside Rear Service brake effort inadequate at a wheel |1.2.1 |a| |i||1
Windscreen washer not working 1
Nearside Front Outer Anti-roll bar linkage missing |5.3.3 |a| |ii||1
Nearside Rear Leaf spring splayed and action impaired |2.4.B.1c|1
Offside Rear Leaf spring splayed and action impaired |2.4.B.1c|1
Nearside Rear Leaf spring anchor bracket corroded and seriously weakened |2.4.B.6d|1
Offside Rear Leaf spring anchor bracket corroded and seriously weakened |2.4.B.6d|1
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Braking system leaking |3.6.A.1|1
Offside Front wheel bearing rough when rotated |2.5.A.2|1
Offside Front Upper Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Rear Mechanical brake component has restricted free movement1
Nearside 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
Offside Front Lower Axle swivel joint insecure in a suspension arm |2.5.A.3b|1
Offside Rear Leaf spring shackle bracket corroded and seriously weakened |2.4.B.6d|1
Offside Front brake caliper has restricted free movement |3.5.1k|1
Offside Front An item not tested |Manual|1
Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1|1
Offside Rear Hydraulic brake cylinder insecurely mounted |3.6.A.2a|1
Offside Front Lower brake caliper securing device loose |3.5.1j|1
Rear Brake rod insecure |3.5.1d|1
Offside Rear Brake pipe excessively damaged to rear wheel |3.6.B.2c|1
Rear Stop lamp not working |1.2.1b|1
Offside Front Shock absorber has negligible damping effect |2.7.5|1
Offside Rear Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Front Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Rear Rear position lamp|s| not working |1.1.A.3b|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|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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