| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 24 |
| Brakes imbalanced across an axle | 17 |
| Horn not working |1.6.2a| | 13 |
| Headlamp aim out of alignment | 13 |
| Windscreen wiper does not clear the windscreen effectively | 12 |
| Rear brake binding | 11 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 11 |
| Parking brake: efficiency below requirements |3.7.B.7| | 8 |
| Rear parking brake recording little or no effort | 8 |
| Brake pipe excessively corroded | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |
| Brake hose excessively deteriorated | 6 |
| Front brake excessively fluctuating | 6 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Offside Rear Braking system leaking |3.6.A.1| | 5 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Service brake: efficiency below requirements |3.7.C.1a| | 5 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Direction indicators not working |1.4.A.2c| | 4 |
| Front brake application uneven | 4 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Headlamp not working on main beam |1.7.5a| | 4 |
| Battery insecure |1.9.1| | 4 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Registration plate issues | 4 |
| Service brake: efficiency below requirements |3.7.B.7| | 4 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 3 |
| Driver`s seat insecure |6.2.A.1| | 3 |
| Brake performance not tested |3.7.A.1| | 3 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 3 |
| Brake master cylinder insecurely mounted |3.6.G.1a| | 3 |
| Offside Front Shock absorber insecure |2.7.2b| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Rear brake application uneven | 3 |
| Nearside Rear Braking system leaking |3.6.A.1| | 3 |
| Offside Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 3 |
| Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a| | 3 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Braking system leaking |3.6.A.1| | 2 |
| Fuel system component leaking |7.2.3| | 2 |
| Brake pedal spongy |3.3.B.1b| | 2 |
| Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 2 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 2 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 2 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Offside Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Nearside Front Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 2 |
| Steering wheel in a condition likely to injure the driver`s hands |2.1.1| | 2 |
| Steering wheel weakened by fractures |2.1.1| | 2 |
| Offside Front brake caliper locking device insecure |3.5.1l| | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Brake pipe inadequately clipped |3.6.B.1| | 2 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 2 |
| Offside Front Braking system leaking |3.6.A.1| | 2 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 2 |
| Offside Front Direction indicators not working |1.4.A.2c| | 2 |
| Windscreen washer not working | 2 |
| All position lamps not working |1.1.A.3b| | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 2 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 2 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Direction indicator not working |1.4.A.2c| | 2 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Rear Leaf spring to axle fixing bolt insecure (5.3.1 (a) (i)) | 1 |
| Steering box has excessive free play detected at the steering wheel (steering box fitted) (2.3 (a) (i)) | 1 |
| Offside Rear Road wheel fractured 2 spokes broken |5.2.2 |a|| | 1 |
| Braking system leaking master cylinder |3.6.A.1| | 1 |
| Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Front Brake hose bulging under pressure |3.6.B.3| | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Brake master cylinder damaged and function impaired |3.6.G.1c| | 1 |
| Offside Front Wheel nut|s| loose |4.2.A.1e| | 1 |
| Rear Wheel nut|s| loose |4.2.A.1e| | 1 |
| Offside Front Wheel insecure |4.2.A.1c| | 1 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear wheel cylinder leaking |3.6.A.1| | 1 |
| Offside Rear wheel cylinder leaking |3.6.A.1| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 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 position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Front Anti-roll bar attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Rear Brake hose leaking |3.6.A.1| | 1 |
| Nearside Front front brake binding |3.7.B.1| | 1 |
| Nearside Front Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Upper Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 1 |
| Nearside Front Upper Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Nearside Front Lower Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Offside Front Upper Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Offside Front Lower Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Parking brake lever has excessive side play in the pivot and may disengage |3.1.4a| | 1 |
| Rear Rear passenger seat cannot be secured in the upright position. |6.2.3| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Nearside Front brake caliper locking device insecure |3.5.1l| | 1 |
| Offside Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Front Upper Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Offside Front Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Front Brake hose leaking |3.6.A.1| | 1 |
| Rear Brake hose leaking |3.6.A.1| | 1 |
| rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 1 |
| Offside Steering locking device missing |2.2.C.1g| | 1 |
| Offside Rear Wheel insecure |4.2.A.1c| | 1 |
| Electrical wiring insecure |1.9.2a| | 1 |
| Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt both |2.2.C.1c| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Rear Brake pipe kinked |3.6.B.2b| | 1 |
| Nearside Front Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Intermediate drop arm insecure |2.2.B.1a| | 1 |
| Nearside Front Wheel insecure |4.2.A.1c| | 1 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Rear Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear Exhaust mounting missing |7.1.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Suspension component mounting prescribed area is corroded to the extent that control of the vehicle is likely to be adversely affected leaf spring hanger (5.3.6 (a) (ii)) | 1 |
| Offside Obligatory mirror missing (3.3 (a)) | 1 |
| Power steering inoperative (2.1.5 (c) (i)) | 1 |
| Headlamp aim projected beam image is obviously incorrect both right dipping (4.1.2 (c)) | 1 |
| Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 1 |
| Nearside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Front Front suspension has excessive play in a lower wishbone bearing |2.5.B.1a| | 1 |
| Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 1 |
| Parking brake operation is causing the vehicle to swerve to the offside |3.7.C.3a| | 1 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Indicator switch faulty |1.4.A.1| | 1 |
| Offside Front Driver`s door does not latch securely closed |6.2.B.1a| | 1 |
| Offside Front Suspension arm attachment bracket/mounting bolt missing |2.4.G.1| | 1 |
| Offside Front Suspension arm attachment bracket/mounting nut missing |2.4.G.1| | 1 |
| Centre Obligatory mirror missing |8.1.1| | 1 |
| Nearside Rear position lamp|s| incomplete |1.1.4a| | 1 |
| Nearside Rear Leaf spring saddle is moving relative to the spring |2.4.B.7a| | 1 |
| Front Anti-roll bar fractured |2.4.G.1| | 1 |
| Brake linkage has abnormal movement of levers indicating excessive wear |3.5.1f| | 1 |
| Nearside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front Lower Shock absorber insecure |2.7.2b| | 1 |
| Nearside Front Road wheel spoke cracked |4.2.A.1b| | 1 |
| Front Fuel pipe leaking |7.2.3| | 1 |
| Offside Rear Hydraulic brake cylinder leaking hydraulic fluid (1.1.16 (b) (i)) | 1 |
| Offside Seat belt installation retro-fitted three point belt mounted to an unsuitable structure (10.1 (g)) | 1 |
| Nearside Seat belt installation retro-fitted three point belt mounted to an unsuitable structure (10.1 (g)) | 1 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Offside Front Lower Suspension arm corroded and seriously weakened |2.4.G.1| | 1 |
| Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Nearside Front Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Front front brake binding |3.7.B.1| | 1 |
| Offside Rear front brake binding |3.7.B.1| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 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 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Steering wheel weakened by cracks |2.1.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front passenger seat insecure |6.2.3| | 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 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 1 |
| Offside Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Nearside Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Suspension arm corroded and seriously weakened |2.4.G.1| | 1 |
| Nearside Vehicle structure has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Offside Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Nearside Rear Leaf spring deteriorated and seriously weakened |2.4.B.1a| | 1 |
| Offside Rear Leaf spring deteriorated and seriously weakened |2.4.B.1a| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Nearside Front Steering component mounting prescribed area is excessively corroded |2.2.C.1h| | 1 |
| Nearside Front Steering component mounting prescribed area is inadequately repaired |2.2.C.1h| | 1 |
| Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Nearside Front Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 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 Front Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Upper Ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Upper Ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Electrical wiring deteriorated and bare wires exposed |1.9.2c| | 1 |
| Nearside Front Electrical wiring damaged and bare wires exposed |1.9.2c| | 1 |
| Offside Front Electrical wiring damaged and bare wires exposed |1.9.2c| | 1 |
| Offside Rear rear brake excessively fluctuating |3.7.B.3| | 1 |
| Offside Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Hydraulic brake cylinder leaking hydraulic fluid Master cylinder |3.6.A.1| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i)) | 1 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Nearside Inner Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Inner Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Rear Wheel bolt|s| loose |4.2.A.1e| | 1 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Offside Rear Suspension spring mounting prescribed area is fractured |2.4.A.3| | 1 |
| Nearside Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Fluid leak harmful to the environment or a risk to other road users coolant (8.4.1 (a) (i)) | 1 |
| Front passenger seat insecure |6.2.3| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Rear Direction indicators not working |1.4.A.2c| | 1 |
| Offside Rear Upper Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 1 |
| Mechanical brake component has restricted free movement | 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 Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Front Inner Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Rear Exhaust has a major leak of exhaust gases both |7.1.2| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Nearside Rear Wheel nut|s| loose |4.2.A.1e| | 1 |