| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 2698 |
| Headlamp aim out of alignment | 1917 |
| Brake pipe excessively corroded | 1441 |
| Registration plate lamp issues | 1043 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 370 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 297 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 293 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 293 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 258 |
| Nearside Stop lamp not working |1.2.1b| | 212 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 211 |
| Registration plate issues | 201 |
| Offside Stop lamp not working |1.2.1b| | 170 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 167 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 165 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 156 |
| Brakes imbalanced across an axle | 155 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 150 |
| Front brake disc in such a condition that it is seriously weakened | 140 |
| Parking brake: efficiency below requirements |3.7.B.7| | 120 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 118 |
| Horn not working (7.7 (a) (ii)) | 113 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 104 |
| Nearside Side repeater not working |1.4.A.2c| | 101 |
| Nearside Rear Stop lamp not working |1.2.1b| | 97 |
| Horn not working (7.7 (a)) | 94 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 91 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 88 |
| Windscreen washer not working | 87 |
| Offside Rear Stop lamp not working |1.2.1b| | 87 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 85 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 80 |
| Offside Side repeater not working |1.4.A.2c| | 77 |
| Nearside Front Shock absorbers has a serious fluid leak | 72 |
| Rear parking brake recording little or no effort | 71 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 70 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 70 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 65 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 65 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 65 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 64 |
| Rear brake disc in such a condition that it is seriously weakened | 62 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 61 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 61 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 60 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 60 |
| Front brake excessively fluctuating | 60 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 59 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 59 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 59 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 58 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 57 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 55 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 52 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 51 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 51 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 51 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 50 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 49 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 49 |
| Offside Front Shock absorbers has a serious fluid leak | 48 |
| Horn not working |1.6.2a| | 48 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 46 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 46 |
| Rear brake binding | 45 |
| Offside Front Position lamp not working |4.2.1 |a|| | 44 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 42 |
| Nearside Rear Shock absorbers has a serious fluid leak | 40 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 40 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 39 |
| Offside Rear Shock absorbers has a serious fluid leak | 39 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 38 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 37 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 36 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 35 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 34 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 34 |
| Parking brake lever has no reserve travel |3.1.6b| | 34 |