| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 703 |
| Headlamp aim out of alignment | 319 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 117 |
| Windscreen washer not working | 93 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 56 |
| Registration plate lamp issues | 43 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 28 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 28 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 23 |
| Registration plate issues | 22 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 20 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 20 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 19 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 16 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 15 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 13 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Brakes imbalanced across an axle | 12 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 10 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 9 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Nearside Front Front fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 6 |
| Offside Front fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 6 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 6 |