| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 113 |
| Headlamp aim out of alignment | 70 |
| Registration plate lamp issues | 36 |
| Brake pipe excessively corroded | 23 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Registration plate issues | 12 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 9 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Brakes imbalanced across an axle | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 3 |
| Windscreen washer not working | 2 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Service brake excessively binding |1.2.1 |f|| | 2 |
| Brake performance not tested (1.2.1 (g)) | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Electronic stability system switch faulty |3.4.5| | 2 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 2 |
| Electronic stability control switch not functioning correctly |7.12 |d|| | 2 |
| Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 2 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 2 |