| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 322 |
| Headlamp aim out of alignment | 312 |
| Brake pipe excessively corroded | 292 |
| Registration plate lamp issues | 240 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 92 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 78 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 67 |
| Parking brake: efficiency below requirements |3.7.B.7| | 58 |
| Registration plate issues | 50 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 45 |
| Horn not working (7.7 (a)) | 43 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 37 |
| Front brake disc in such a condition that it is seriously weakened | 35 |
| Rear parking brake recording little or no effort | 35 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 33 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 31 |
| Nearside Stop lamp not working |1.2.1b| | 27 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 27 |
| Brakes imbalanced across an axle | 27 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 26 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Nearside Side repeater not working |1.4.A.2c| | 26 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 25 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 25 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 24 |
| Horn not working |1.6.2a| | 24 |
| Front brake excessively fluctuating | 23 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 22 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 21 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 21 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 21 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 20 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 20 |
| Offside Side repeater not working |1.4.A.2c| | 20 |
| Rear brake disc in such a condition that it is seriously weakened | 20 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 20 |
| Horn not working (7.7 (a) (ii)) | 19 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 19 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 18 |
| Windscreen washer not working | 17 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 16 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 16 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 16 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 16 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 15 |
| Rear brake binding | 14 |
| Offside Stop lamp not working |1.2.1b| | 14 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 14 |
| Front brake application uneven | 14 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 13 |
| Nearside Rear Stop lamp not working |1.2.1b| | 13 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 12 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 11 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 11 |
| Nearside Front Lower Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 11 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 11 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 10 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 10 |
| Offside Rear Stop lamp not working |1.2.1b| | 10 |
| Offside Front Lower Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 10 |
| Offside Front Position lamp not working |4.2.1 |a|| | 10 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 10 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 9 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 9 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 8 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 7 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Anti-lock braking system warning lamp indicates an ABS fault | 7 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 7 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Offside Front Shock absorbers has a serious fluid leak | 6 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 6 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 6 |
| Nearside Front Shock absorbers has a serious fluid leak | 6 |
| Rear Mechanical brake component has restricted free movement | 6 |