| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 619 |
| Headlamp aim out of alignment | 250 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 127 |
| Registration plate lamp issues | 73 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 62 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 53 |
| Windscreen washer not working | 39 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 38 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 38 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 36 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 30 |
| Registration plate issues | 27 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 24 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 23 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 21 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 20 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 16 |
| Brakes imbalanced across an axle | 15 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Rear brake disc in such a condition that it is seriously weakened | 13 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 9 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Nearside Front Headlamp levelling device inoperative (4.1.5 (a)) | 8 |
| Offside Front Headlamp levelling device inoperative (4.1.5 (a)) | 8 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Nearside Headlamp levelling device inoperative (4.1.5 (a)) | 7 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 7 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 6 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 6 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 5 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |