| Most common failures | No# failures |
|---|
| Rear brake binding | 3 |
| Registration plate lamp issues | 3 |
| Brake performance not tested |3.7.A.1| | 2 |
| Brake pipe inadequately clipped |3.6.B.1| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Centre Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Centre Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Front Brake master cylinder insecurely mounted |3.6.G.1a| | 1 |
| Centre Front Brake performance not tested |3.7.A.1| | 1 |
| Nearside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Offside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Centre Front Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Offside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Brake hose bulging under pressure |3.6.B.3| | 1 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Windscreen wiper does not clear the windscreen effectively | 1 |
| Obligatory mirror missing |8.1.1| | 1 |
| Parking brake lever insecure |3.1.3b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |