| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 794 |
| Windscreen wiper does not clear the windscreen effectively | 691 |
| Registration plate issues | 352 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 214 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 83 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 74 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 58 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 52 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 51 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 39 |
| Windscreen washer not working | 36 |
| Rear brake disc in such a condition that it is seriously weakened | 28 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 24 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 22 |
| Front brake disc in such a condition that it is seriously weakened | 20 |
| Offside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 17 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 17 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 16 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Brake performance not tested (1.2.1 (g)) | 15 |
| Anti-lock braking system warning lamp indicates an ABS fault | 13 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 13 |
| 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)) | 12 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Registration plate lamp issues | 11 |
| Nearside Front Front fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 10 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 9 |
| Nearside Front Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 9 |
| Offside Front Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 9 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 9 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 9 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |