| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 223 |
| Windscreen wiper does not clear the windscreen effectively | 211 |
| Headlamp aim out of alignment | 142 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 37 |
| Parking brake: efficiency below requirements |3.7.B.7| | 34 |
| Registration plate issues | 34 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 25 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 22 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 20 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 20 |
| Parking brake lever has no reserve travel |3.1.6b| | 20 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 16 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 15 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 15 |
| Windscreen washer not working | 14 |
| Horn not working (7.7 (a)) | 12 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 10 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 8 |
| Brake pipe excessively corroded | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Rear brake disc in such a condition that it is seriously weakened | 6 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 6 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Brakes imbalanced across an axle | 5 |
| Windscreen has damage | 5 |
| Service brake: efficiency below requirements |3.7.B.7| | 4 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Offside Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 4 |
| Windscreen wiper blade insecure | 4 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 4 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 4 |