| Most common failures | No# failures |
|---|
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 204 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 162 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 119 |
| Headlamp aim out of alignment | 102 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 101 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 78 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 54 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 51 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 42 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 39 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 34 |
| Windscreen wiper does not clear the windscreen effectively | 33 |
| Brakes imbalanced across an axle | 33 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 30 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 30 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 28 |
| Windscreen washer not working | 26 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 25 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 24 |
| Registration plate issues | 23 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 23 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 22 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 21 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 20 |
| Reversing lamp inoperative (4.6.1 (a)) | 19 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 15 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 13 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 13 |
| Offside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 12 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 11 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 11 |
| Registration plate lamp issues | 10 |
| Rear fog lamp tell-tale not working (4.9.1 (a) (ii)) | 10 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 8 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Nearside Rear Reversing lamp inoperative (4.6.1 (a)) | 7 |
| Offside Rear Stop lamp(s) emits other than a steady red light (4.3.3 (a) (ii)) | 7 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Front brake disc in such a condition that it is seriously weakened | 7 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 6 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 5 |
| Rear Reversing lamp inoperative (4.6.1 (a)) | 5 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Nearside Rear Stop lamp(s) emits other than a steady red light (4.3.3 (a) (ii)) | 5 |
| Nearside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Offside Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Headlamp aim unable to be tested (4.1.2 (b)) | 5 |