| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2196 |
| Windscreen wiper does not clear the windscreen effectively | 511 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 489 |
| Windscreen washer not working | 377 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 369 |
| Registration plate issues | 301 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 238 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 188 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 154 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 107 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 101 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 99 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 90 |
| Registration plate lamp issues | 89 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 85 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 80 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 78 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 75 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 68 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 64 |
| Brakes imbalanced across an axle | 64 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 63 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 60 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 58 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 55 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 50 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 49 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 49 |
| Horn not working (7.7 (a)) | 49 |
| Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 48 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 47 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 44 |
| Front brake disc in such a condition that it is seriously weakened | 43 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 41 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 38 |
| Offside Rear Shock absorbers has a serious fluid leak | 34 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 34 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 33 |
| Horn not working (7.7 (a) (ii)) | 31 |
| Nearside Rear Shock absorbers has a serious fluid leak | 31 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 31 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 30 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 28 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 28 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 27 |
| Brake performance not tested (1.2.1 (g)) | 27 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 27 |