| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1315 |
| Windscreen wiper does not clear the windscreen effectively | 548 |
| Headlamp aim out of alignment | 450 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 262 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 242 |
| Brake pipe excessively corroded | 183 |
| Registration plate issues | 143 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 134 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 133 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 105 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 83 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 82 |
| Parking brake: efficiency below requirements |3.7.B.7| | 79 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 71 |
| Parking brake lever has no reserve travel |3.1.6b| | 66 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 63 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 62 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 61 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 59 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 57 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 54 |
| Offside Front Position lamp not working |4.2.1 |a|| | 53 |
| Nearside Front Shock absorbers has a serious fluid leak | 52 |
| Windscreen washer not working | 51 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 47 |
| Offside Front Shock absorbers has a serious fluid leak | 46 |
| Brakes imbalanced across an axle | 45 |
| Rear brake disc in such a condition that it is seriously weakened | 44 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 41 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 41 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 39 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 39 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 38 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 36 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 33 |
| Rear brake binding | 32 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 32 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 29 |
| Front brake disc in such a condition that it is seriously weakened | 29 |
| Offside Front Headlamp light intensity severely reduced (4.1.4 (a)) | 26 |
| Offside Headlamp light intensity severely reduced (4.1.4 (a)) | 25 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 25 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 23 |
| Horn not working (7.7 (a)) | 21 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 20 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Brake hose excessively deteriorated | 18 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 18 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 18 |
| Offside Rear Shock absorbers has a serious fluid leak | 18 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 18 |
| Front position lamp|s| not working |1.1.A.3b| | 17 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 17 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 17 |
| Nearside Headlamp light intensity severely reduced (4.1.4 (a)) | 16 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 15 |
| Nearside Front Headlamp light intensity severely reduced (4.1.4 (a)) | 15 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Windscreen has damage | 14 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 13 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 13 |
| Front Front position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 13 |
| Rear Mechanical brake component has restricted free movement | 13 |