| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1215 |
| Headlamp aim out of alignment | 576 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 313 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 271 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 129 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 127 |
| Registration plate issues | 91 |
| Brake pipe excessively corroded | 82 |
| Offside Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 68 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 58 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 49 |
| Windscreen washer not working | 48 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 47 |
| Rear brake disc in such a condition that it is seriously weakened | 44 |
| Registration plate lamp issues | 38 |
| Nearside Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 35 |
| Brakes imbalanced across an axle | 29 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 26 |
| Offside Front Position lamp not working |4.2.1 |a|| | 25 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 25 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 24 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 24 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 23 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 23 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 21 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 21 |
| Front brake disc in such a condition that it is seriously weakened | 19 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 18 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Offside Front Anti-roll bar linkage insecurely attached (5.3.3 (a) (i)) | 17 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Nearside Front Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 16 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 16 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 16 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 15 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 15 |
| Offside Front Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 14 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 14 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 14 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 14 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour |8.2.2.2 |d|| | 13 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 13 |