| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 419 |
| Brake pipe excessively corroded | 310 |
| Headlamp aim out of alignment | 199 |
| Registration plate lamp issues | 107 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 77 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 61 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 55 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 54 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 50 |
| Brakes imbalanced across an axle | 50 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 49 |
| Registration plate issues | 49 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 44 |
| Anti-lock braking system warning lamp indicates an ABS fault | 42 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 41 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 41 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 39 |
| Windscreen washer not working | 39 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 35 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 35 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 34 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 34 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 33 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 32 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 31 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 30 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 30 |
| Front brake disc in such a condition that it is seriously weakened | 26 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 26 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 25 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 21 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Parking brake lever has no reserve travel |3.1.6b| | 17 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 16 |
| Offside Front Shock absorbers has a serious fluid leak | 15 |
| Offside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 14 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 14 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 14 |
| Nearside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 14 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 14 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 13 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 13 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 10 |
| Nearside Front Shock absorbers has a serious fluid leak | 10 |
| Nearside Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 9 |
| Rear brake disc in such a condition that it is seriously weakened | 9 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 9 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 9 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 9 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Front brake excessively fluctuating | 8 |
| Emissions not tested (8.2.2.2 (e)) | 8 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Offside Rear Shock absorbers has a serious fluid leak | 8 |
| Power steering component leaking (2.1.5 (a)) | 8 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 8 |