| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 4381 |
| Headlamp aim out of alignment | 2315 |
| Brake pipe excessively corroded | 1701 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1005 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 962 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 558 |
| Registration plate lamp issues | 546 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 536 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 498 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 433 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 347 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 336 |
| Brakes imbalanced across an axle | 310 |
| Windscreen washer not working | 305 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 283 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 271 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 240 |
| Registration plate issues | 199 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 182 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 170 |
| Front brake disc in such a condition that it is seriously weakened | 147 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 99 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 97 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 92 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 85 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 81 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 77 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 74 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 74 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 72 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 70 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 69 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 65 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 65 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 61 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 61 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 60 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 58 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 54 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 52 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 49 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 47 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 45 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 44 |