| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 8 |
| Brakes imbalanced across an axle | 7 |
| Nearside Stop lamp not working |1.2.1b| | 5 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Rear parking brake recording little or no effort | 5 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 5 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 3 |
| Horn not working |1.6.2a| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Rear brake application uneven | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Front brake application uneven | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 2 |
| Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b| | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Brake hose excessively deteriorated | 2 |
| Offside Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Nearside Rear Brake linkage has abnormal movement of levers indicating maladjustment |3.5.1f| | 1 |
| Nearside Headlamp insecure |1.7.3| | 1 |
| Rear brake binding | 1 |
| Registration plate lamp issues | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Nearside Semaphore indicator arm not working (4.4.1 (a) (ii)) | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Service brake is causing the vehicle to swerve to the nearside |1.2.1 |b| |i|| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Front Braking system leaking |3.6.A.1| | 1 |
| Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Rear Brake hose leaking |3.6.A.1| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake imbalanced across an axle |3.7.B.5b| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Intermediate drop arm insecure |2.2.B.1a| | 1 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 1 |
| Nearside Vehicle structure has an inadequate repair which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Vehicle structure has an inadequate repair which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 1 |
| Nearside Steering locking device missing |2.2.C.1g| | 1 |
| Offside Steering locking device missing |2.2.C.1g| | 1 |
| Nearside Front Leaf spring has excessive wear in an anchor pin and/or bush |2.4.B.2| | 1 |
| Offside Leaf spring has excessive wear in an anchor pin and/or bush |2.4.B.2| | 1 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 1 |
| Nearside Front Leaf spring to axle securing bolt insecure |2.4.B.7b| | 1 |
| Offside Front Leaf spring to axle securing nut insecure |2.4.B.7b| | 1 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 1 |
| front brakes release unevenly |3.7.B.4| | 1 |
| Nearside Front Braking system leaking |3.6.A.1| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Suspension arm worn and seriously weakened |2.4.G.1| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Rear Brake lining|s| insecure |3.5.1g| | 1 |
| Nearside Front Semaphore indicator arm arm does not show an amber light to the front |1.4.C.1b| | 1 |
| Nearside Rear Semaphore indicator arm arm does not show an amber light to the rear |1.4.C.1b| | 1 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Front Driver`s seat insecure |6.2.A.1| | 1 |
| Nearside Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 1 |
| Nearside Front brake drum insecure |3.5.1i| | 1 |
| Nearside Rear front brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front front brake binding |3.7.B.1| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear Road wheel spoke excessively loose |4.2.A.1b| | 1 |
| Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 1 |
| Steering column top mounting bracket insecure |2.1.2d| | 1 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Centre Rear Spare wheel carrier insecure |6.4.2| | 1 |
| Offside Front Lower Steering box insecure |2.2.B.1a| | 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 |
| Offside Front Shock absorber insecure |2.7.2b| | 1 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 1 |
| Nearside brake drum contaminated by oil |3.5.1h| | 1 |
| Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Shock absorber has an excessively worn linkage |2.7.4| | 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 |
| Nearside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| All position lamps not in good working order |function impaired| |1.1.A.2a| | 1 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Brake master cylinder insecurely mounted |3.6.G.1a| | 1 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 1 |
| Windscreen wiper does not clear the windscreen effectively | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Rear Rear passenger seat cannot be secured in the upright position. |6.2.3| | 1 |