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MOT History from tests of petrol MG MGs year 1947

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

mot history
Pass percent:82.67%
(The average a petrol MG MG year 1947 passes without issue)
Based on:479 MOT Tests
Most common failuresNo# failures
Offside Stop lamp not working |1.2.1b|10
Nearside Stop lamp not working |1.2.1b|9
Brakes imbalanced across an axle8
Headlamp aim out of alignment8
Parking brake: efficiency below requirements |3.7.B.7|7
Offside Rear Stop lamp not working |1.2.1b|5
Horn not working |1.6.2a|5
Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b|4
Rear parking brake recording little or no effort4
Nearside Rear Stop lamp not working |1.2.1b|3
Parking brake lever ratchet mechanism is excessively worn |3.1.5|3
Front brake application uneven3
Offside Rear wheel bearing has excessive play |2.6.2|3
Rear brake binding3
Registration plate lamp issues3
Stop lamp not working |1.2.1b|2
Centre Exhaust has a major leak of exhaust gases |7.1.2|2
Brake hose excessively deteriorated2
Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b|2
Parking brake lever releases when knocked |3.1.6a|2
Nearside Front Wheel insecure |4.2.A.1c|2
Offside front brake grabbing severely |3.7.A.2b|2
Service brake: efficiency below requirements |3.7.C.1a|2
Offside Rear Rear wheel bearing has excessive play |2.6.2|2
Offside Drag link end ball joint has excessive play |2.2.B.1f|2
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|2
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside Rear reflector missing |1.5.1a|2
Offside Rear reflector missing |1.5.1a|2
Brake hose has insufficient room to move2
Direction indicators not working |1.4.A.2c|2
Fuel tank leaking |7.2.3|2
Rear Stop lamp not working |1.2.1b|2
Nearside rear brake recording little or no effort |3.7.B.5a|2
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|1
Offside Rear Shock absorber has an excessively worn bush |2.7.4|1
Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Offside Rear Wheel fitment excessively worn between the wheel and hub spigot mounting |4.2.B.5|1
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Front Direction indicator not working |1.4.A.2c|1
Nearside Drag link end ball pin shank loose |2.2.B.1c|1
Nearside Rear Wheel nut|s| loose |4.2.A.1e|1
Offside Rear Wheel nut|s| loose |4.2.A.1e|1
Offside Front Suspension arm locating pin locking device not properly locked |2.4.G.3b|1
Offside Front Direction indicator excessively deteriorated so that it is not visible from a reasonable distance |1.4.A.2e|1
Indicator switch faulty |1.4.A.1|1
Headlamp switch faulty |1.7.1|1
Nearside Front Brake cable locking device missing |3.5.1l|1
Offside Front Brake cable locking device missing |3.5.1l|1
Fuel system component insecure |7.2.1|1
Nearside Front Brake pipe inadequately clipped |3.6.B.1|1
Offside Front Ball joint ball pin shank loose |2.2.B.1c|1
Nearside Rear Rear reflector missing |1.5.1a|1
Offside Rear Rear reflector missing |1.5.1a|1
Offside Steering arm has relative movement at its fixings |2.2.B.1h|1
Offside Front Shock absorber detached |2.7.2b|1
Nearside Rear Shock absorber insecure |2.7.2b|1
Offside Axle beam cracked |2.5.A.5a|1
Exhaust emits clearly visible black smoke during acceleration |7.3.A.2c|1
Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Nearside Rear Shock absorber has an excessively worn bush |2.7.4|1
Offside Rear Shock absorber insecure |2.7.2b|1
Offside Front front brake recording little or no effort |3.7.B.5a|1
Offside Front Valve stem seriously damaged |4.1.D.1e|1
Windscreen wiper does not clear the windscreen effectively1
Nearside Front front brake recording little or no effort |3.7.B.5a|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Offside Front Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c|1
Windscreen has damage1
Nearside Rear Leaf spring to axle securing nut insecure |2.4.B.7b|1
Offside Rear Leaf spring to axle securing nut insecure |2.4.B.7b|1
Nearside Front Electrical wiring damaged, likely to cause a short wiring harness to light bar trapped between chassis and wing mounting |1.9.2b|1
Parking brake lever has no reserve travel |3.1.6b|1
Rear Rear wheel bearing has excessive play BOTH |2.6.2|1
Drag link end ball joint has excessive play From steering box drop arm area to drag link |2.2.B.1f|1
Offside Rear rear brakes release unevenly Slow to release |3.7.B.4|1
Offside Semaphore indicator arm does not extend smoothly |1.4.C.1a|1
Nearside Inner Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Nearside Outer Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Offside Outer Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Offside Rear Leaf spring cracked |2.4.B.1a|1
Nearside Rear Leaf spring shackle pin retaining device missing |2.4.B.3b|1
Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Nearside Front Lower Leaf spring eye defective |shackle| |2.4.B.1b|1
Offside Front Shock absorber has an excessively worn linkage |2.7.4|1
Nearside Front Lower Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Offside Rear Lower Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Nearside Vehicle structure is cracked, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Brake master cylinder leaking hydraulic fluid |3.6.G.1f|1
Parking brake: efficiency below requirements |3.7.C.1b|1
Nearside Rear Road wheel spoke cracked |4.2.A.1b|1
Nearside Front Direction indicators not working |1.4.A.2c|1
Nearside Rear Direction indicators not working |1.4.A.2c|1
Offside Front Direction indicators not working |1.4.A.2c|1
Offside Rear Direction indicators not working |1.4.A.2c|1
Offside Rear Wheel insecure |4.2.A.1c|1
Nearside Headlamp not working on main beam |1.7.5a|1
Nearside Rear front brake recording little or no effort |3.7.B.5a|1
Front Windscreen wiper not operating automatically when switched on |8.2.1b|1
Nearside Front Electrical wiring insecure |1.9.2a|1
Offside Front Electrical wiring insecure |1.9.2a|1
Braking system leaking master cylinder |3.6.A.1|1
Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c|1
Nearside Rear position lamp|s| not in a clean condition and function impaired |1.1.4a|1
Offside Front Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Direction indicator not working |1.4.A.2c|1
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b|1
Centre Rear Fuel cap/sealing device does not fasten securely by positive means |7.2.4b|1
Centre Rear Fuel cap/sealing device sealing washer deteriorated |7.2.4c|1
Driver`s seat insecure |6.2.A.1|1
Offside Rear Road wheel spoke cracked |4.2.A.1b|1
Offside Drag link end loose |2.2.B.1d|1
Steering box insecure |2.2.B.1a|1
Front Leaf spring anchor bracket loose |2.4.B.6a|1
Offside Front Leaf spring anchor bracket loose |2.4.B.6a|1
Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d|1
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|1
Offside Front Front wheel bearing has excessive play |2.5.A.3c|1
Nearside Rear Rear wheel bearing has excessive play |2.6.2|1
Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|1
Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|1
Offside Rear Leaf spring shackle pin not correctly positioned |2.4.B.3a|1
Rear Obligatory mirror missing |8.1.1|1
Nearside Rear position lamp|s| missing |1.1.A.3a|1
Nearside Stop lamp missing |1.2.1a|1
Nearside Rear reflector more than 50% obscured |1.5.1b|1
Offside Rear reflector insecure |1.5.1a|1
Offside Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d|1
Offside Front position lamp|s| not working |1.1.A.3b|1
Offside Front Headlamp not working on dipped beam |1.7.5a|1
Nearside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Offside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Nearside Rear rear brake recording little or no effort |3.7.B.5a|1
Service brake: efficiency below requirements |3.7.B.7|1
Ball joint ball pin shank loose |2.2.B.1c|1
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside Track rod end ball pin shank loose |2.2.B.1c|1
Service brake is causing the steering wheel to severely pull one way |3.7.C.2|1
Nearside Steering rack gaiter split |2.2.D.2d|1
Offside Steering rack gaiter split |2.2.D.2d|1
Offside Rear Anti-roll bar attachment bracket/mounting insecure |2.4.G.1|1
Nearside Rear wheel cylinder has restricted free movement |3.5.1k|1
Nearside Front Service brake is causing the steering wheel to severely pull one way |3.7.C.2|1
Nearside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Offside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Brake servo vacuum pipe collapsed |3.6.C.1b|1
Steering wheel in a condition that hampers proper control |2.1.1|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Rear Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b|1
Nearside Front Ball joint has excessive play |2.2.B.1f|1
Offside Front Ball joint has excessive play |2.2.B.1f|1
Nearside Front Headlamp aim headlamp not in good working order adversely affecting beam image |1.2.4b|1
Offside Front Headlamp aim headlamp not in good working order adversely affecting beam image |1.2.4b|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Stop lamp remains on when the brakes are released1

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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