| Most common failures | No# failures |
|---|
| Towbar component insecure |6.6.1| | 2 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| 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 |
| Speedometer clearly inoperative (7.8 (b) (ii)) | 1 |
| Stop lamp(s) not working front lever (4.3.1 (a) (ii)) | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Parking brake operation grabbing severely |3.7.C.3b| | 1 |
| Fuel hose leaking |7.2.3| | 1 |
| Front brake caliper leaking |3.6.A.1| | 1 |
| Front Front position lamp|s| insecure |1.1.A.3a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Braking system leaking |3.6.A.1| | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Front Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Offside Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Fuel tank leaking |7.2.3| | 1 |
| Parking brake operation is causing the vehicle to swerve to the nearside |3.7.C.3a| | 1 |
| Registration plate lamp issues | 1 |