| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 139 |
| Headlamp aim out of alignment | 88 |
| Brake pipe excessively corroded | 53 |
| Registration plate issues | 34 |
| Registration plate lamp issues | 29 |
| Brakes imbalanced across an axle | 27 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 19 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 17 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 9 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 9 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 9 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 9 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Nearside Front Shock absorbers has a serious fluid leak | 7 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 6 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 6 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Rear brake disc in such a condition that it is seriously weakened | 6 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 6 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Nearside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Outer Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 4 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 4 |
| Brake performance unable to be tested (1.2.1 (g)) | 4 |
| Windscreen has damage | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Offside Rear Shock absorbers has a serious fluid leak | 4 |
| Offside Front Outer Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 4 |
| Front brake application uneven | 4 |
| Nearside Rear Shock absorbers has a serious fluid leak | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 3 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 3 |
| Offside Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 3 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Windscreen wiper blade insecure | 3 |
| Offside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 3 |
| Offside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Nearside Rear Hydraulic brake calliper leaking and braking performance affected (1.1.16 (b) (ii)) | 3 |
| Nearside Rear Brake disc contaminated (1.1.14 (b)) | 3 |
| Nearside Front Service brake excessively binding |1.2.1 |f|| | 3 |