| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 4 |
| Registration plate lamp issues | 4 |
| Offside Stop lamp not working |1.2.1b| | 4 |
| Brakes imbalanced across an axle | 3 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Registration plate issues | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Headlamp incorrect colour |1.7.5b| | 1 |
| Offside Headlamp incorrect colour |1.7.5b| | 1 |
| Rear brake binding | 1 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Nearside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Steering rack insecure |2.2.B.1a| | 1 |
| Headlamp incorrect colour |1.7.5b| | 1 |
| Central Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Offside Front Shock absorber casing corroded externally so the unit does not function |2.7.2a| | 1 |