| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 639 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 464 |
| Windscreen wiper does not clear the windscreen effectively | 461 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 151 |
| Registration plate lamp issues | 99 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 90 |
| Windscreen washer not working | 87 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 87 |
| Registration plate issues | 73 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 68 |
| Offside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 63 |
| Nearside Front Shock absorbers has a serious fluid leak | 43 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 40 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 39 |
| Offside Front Daytime running lamp not working (4.2.1 (a) (ii)) | 32 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 28 |
| Nearside Front Daytime running lamp not working (4.2.1 (a) (ii)) | 26 |
| Horn not working (7.7 (a)) | 25 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 24 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 23 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 17 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 17 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 17 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Nearside Daytime running lamp not working (4.2.1 (a) (ii)) | 14 |
| Offside Front Shock absorbers has a serious fluid leak | 13 |
| Nearside Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 13 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 12 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 11 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 11 |
| Brakes imbalanced across an axle | 11 |
| Nearside Rear Anti-roll bar pin or bush excessively worn D bush (5.3.4 (a) (i)) | 11 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 10 |
| Nearside Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 9 |
| Nearside Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 9 |
| Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 9 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 9 |
| Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Rear Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 9 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 9 |
| Offside Rear Anti-roll bar pin or bush excessively worn D bush (5.3.4 (a) (i)) | 9 |
| Nearside Rear Anti-roll bar pin or bush excessively worn "D" bush (5.3.4 (a) (i)) | 9 |
| Offside Rear Anti-roll bar pin or bush excessively worn "D" bush (5.3.4 (a) (i)) | 9 |