| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 551 |
| Brake pipe excessively corroded | 278 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 250 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 233 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 165 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 158 |
| Headlamp aim out of alignment | 155 |
| Horn not working (7.7 (a)) | 131 |
| Windscreen washer not working | 87 |
| Horn sound not in accordance with requirements (7.7 (c)) | 47 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 45 |
| Registration plate lamp issues | 44 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 36 |
| Brakes imbalanced across an axle | 33 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 21 |
| Horn not working (7.7 (a) (ii)) | 21 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 17 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 12 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 12 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Offside Rear Shock absorbers has a serious fluid leak | 11 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 11 |
| Registration plate issues | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 10 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 10 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 10 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 10 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 10 |
| Nearside Rear Shock absorbers has a serious fluid leak | 9 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 9 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 8 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 8 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 7 |
| Nearside Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Central Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 7 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 7 |