| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 414 |
| Headlamp aim out of alignment | 281 |
| Registration plate issues | 65 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 55 |
| Windscreen washer not working | 35 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 25 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 19 |
| Horn not working (7.7 (a) (ii)) | 16 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Horn not working (7.7 (a)) | 11 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Horn not working |7.7 |a| |ii|| | 9 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 9 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Brakes imbalanced across an axle | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 6 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Electronic braking system warning device indicates a fault (1.7 (b)) | 5 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 4 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 4 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |