| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 287 |
| Headlamp aim out of alignment | 127 |
| Registration plate issues | 28 |
| Windscreen washer not working | 28 |
| Rear brake disc in such a condition that it is seriously weakened | 27 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 26 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 26 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 23 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 12 |
| Brake pipe excessively corroded | 11 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Brakes imbalanced across an axle | 10 |
| Registration plate lamp issues | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 10 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 10 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 8 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 4 |
| Nearside Rear Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Offside Rear Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 4 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Rear Brake disc significantly and obviously worn inner surface (1.1.14 (a) (i)) | 3 |
| Rear Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 3 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 3 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |