| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 3096 |
| Headlamp aim out of alignment | 1213 |
| Brake pipe excessively corroded | 809 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 585 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 530 |
| Registration plate lamp issues | 472 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 336 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 269 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 245 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 224 |
| Brakes imbalanced across an axle | 195 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 173 |
| Windscreen washer not working | 160 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 152 |
| Registration plate issues | 144 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 142 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 130 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 118 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 108 |
| Front brake disc in such a condition that it is seriously weakened | 82 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 78 |
| Parking brake lever has no reserve travel |3.1.6b| | 78 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 71 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 70 |
| Offside Front Position lamp not working |4.2.1 |a|| | 64 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 60 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 60 |
| Offside Stop lamp not working |1.2.1b| | 52 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 50 |
| Nearside Stop lamp not working |1.2.1b| | 50 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 42 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 41 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 41 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 40 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 39 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 37 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 36 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 36 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 35 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 34 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 33 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 32 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 32 |
| Rear brake binding | 31 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 30 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 29 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 29 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 29 |