| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 2220 |
| Headlamp aim out of alignment | 497 |
| Brake pipe excessively corroded | 175 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 126 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 111 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 104 |
| Windscreen washer not working | 77 |
| Registration plate lamp issues | 55 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 49 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 47 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 46 |
| Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 44 |
| Brakes imbalanced across an axle | 41 |
| Nearside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 40 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 40 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 39 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 38 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 38 |
| Registration plate issues | 33 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 31 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 28 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 25 |
| Horn not working (7.7 (a)) | 22 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 22 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 21 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 20 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 18 |
| Front brake disc in such a condition that it is seriously weakened | 14 |
| Offside Rear Shock absorbers has a serious fluid leak | 13 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 12 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 11 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 11 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 11 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 11 |
| Nearside Rear Shock absorbers has a serious fluid leak | 11 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 11 |