| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1251 |
| Headlamp aim out of alignment | 591 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 378 |
| Registration plate issues | 159 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 120 |
| Front brake disc in such a condition that it is seriously weakened | 106 |
| Windscreen washer not working | 76 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 73 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 53 |
| Rear brake disc in such a condition that it is seriously weakened | 38 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 36 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 36 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 35 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 35 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 33 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 27 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 24 |
| Nearside Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 19 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Offside Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Brake performance unable to be tested (1.2.1 (g)) | 16 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 15 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 15 |
| Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 14 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 12 |
| Brakes imbalanced across an axle | 11 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 11 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Anti-lock braking system warning lamp indicates an ABS fault | 11 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 11 |