| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 195 |
| Headlamp aim out of alignment | 161 |
| Brake pipe excessively corroded | 90 |
| Registration plate lamp issues | 44 |
| Registration plate issues | 37 |
| Brakes imbalanced across an axle | 29 |
| Parking brake lever has no reserve travel |3.1.6b| | 20 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 20 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Windscreen washer not working | 14 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 13 |
| Front brake disc in such a condition that it is seriously weakened | 11 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 10 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 9 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Rear brake disc in such a condition that it is seriously weakened | 9 |
| Parking brake: efficiency below requirements |3.7.B.7| | 9 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 8 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Front brake application uneven | 6 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 5 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Rear Shock absorbers has a serious fluid leak | 4 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 4 |
| Emissions not tested (8.2.2.2 (e)) | 4 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 4 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Rear brake binding | 4 |
| Horn not working (7.7 (a)) | 4 |
| Offside Front Shock absorbers has a serious fluid leak | 3 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Rear fog lamp not working |1.3.2b| | 3 |
| Central Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 3 |
| Windscreen has damage | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Central Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Rear parking brake recording little or no effort | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |