| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1254 |
| Brake pipe excessively corroded | 566 |
| Headlamp aim out of alignment | 392 |
| Registration plate lamp issues | 145 |
| Brakes imbalanced across an axle | 91 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 83 |
| Horn not working (7.7 (a) (ii)) | 74 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 68 |
| Horn not working |1.6.2a| | 65 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 56 |
| Horn not working (7.7 (a)) | 53 |
| Registration plate issues | 52 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 50 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 44 |
| Windscreen washer not working | 40 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 37 |
| Nearside Stop lamp not working |1.2.1b| | 36 |
| Offside Stop lamp not working |1.2.1b| | 33 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 31 |
| Horn not working |7.7 |a| |ii|| | 31 |
| Front brake disc in such a condition that it is seriously weakened | 30 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 29 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 29 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 26 |
| Offside Front Seat belt buckle not functioning as intended (7.1.2 (d)) | 24 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 23 |
| Horn sound not in accordance with requirements (7.7 (c)) | 23 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 22 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 20 |
| Offside Rear Stop lamp not working |1.2.1b| | 19 |
| Offside Front Position lamp not working |4.2.1 |a|| | 18 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 18 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 18 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 18 |
| Nearside Rear Stop lamp not working |1.2.1b| | 17 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 17 |
| Anti-lock braking system warning lamp indicates an ABS fault | 17 |
| Offside Front front brake binding |3.7.B.1| | 16 |
| Offside Rear Shock absorbers has a serious fluid leak | 15 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 14 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 14 |
| Parking brake: efficiency below requirements |3.7.B.7| | 13 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 13 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 13 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 13 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 12 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 12 |
| Nearside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 12 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 11 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 11 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 11 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 11 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 11 |
| Mechanical brake component has restricted free movement | 11 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 10 |
| Offside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 10 |