| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 402 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 173 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 138 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 137 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 129 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 121 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 116 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 99 |
| Brake pipe excessively corroded | 93 |
| Windscreen wiper does not clear the windscreen effectively | 90 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 87 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 69 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 67 |
| Horn not working (7.7 (a)) | 62 |
| Windscreen washer not working | 62 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 57 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 46 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 44 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 43 |
| Registration plate lamp issues | 40 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 36 |
| Brakes imbalanced across an axle | 34 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 32 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 31 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 27 |
| Registration plate issues | 23 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 23 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 23 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 21 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 19 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 19 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 18 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 15 |
| Rear brake disc in such a condition that it is seriously weakened | 15 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Central Rear Seat belt not functioning as intended (7.1.2 (c)) | 15 |
| Offside Rear Inner Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 14 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 13 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Nearside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 12 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 12 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Front brake disc in such a condition that it is seriously weakened | 12 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 11 |
| Nearside Rear Inner Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 10 |
| Horn sound not in accordance with requirements (7.7 (c)) | 10 |
| Offside Rear Outer Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Horn not working (7.7 (a) (ii)) | 10 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 9 |
| Nearside Front Lower Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 9 |
| Nearside Front Shock absorbers has a serious fluid leak | 9 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 9 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 9 |
| Offside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 8 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 8 |