| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 521 |
| Headlamp aim out of alignment | 241 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 23 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 22 |
| Windscreen washer not working | 21 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 15 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Brakes imbalanced across an axle | 15 |
| Registration plate lamp issues | 12 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 8 |
| Brake pipe excessively corroded | 8 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 7 |
| Registration plate issues | 7 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 7 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Front brake disc in such a condition that it is seriously weakened | 6 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 5 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Brake pedal anti-slip provision worn smooth (1.1.2 (c)) | 4 |
| Rear brake disc in such a condition that it is seriously weakened | 4 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |3.3 |b| |ii|| | 4 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 4 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Central Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 4 |