| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2452 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 1503 |
| Windscreen wiper does not clear the windscreen effectively | 1076 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 644 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 598 |
| Windscreen washer not working | 495 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 435 |
| Registration plate lamp issues | 418 |
| Registration plate issues | 337 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 307 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 235 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 229 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 222 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 205 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 203 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 195 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 191 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 170 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 169 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 154 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 148 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 148 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 143 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 135 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 126 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 120 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 118 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 97 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 97 |
| Brakes imbalanced across an axle | 87 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 87 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 80 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 75 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 74 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 71 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 70 |
| Exhaust emissions exceed manufacturers specified limit 0.50 (8.2.2.2 (a)) | 66 |
| Horn not working (7.7 (a)) | 65 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 64 |
| Front brake disc in such a condition that it is seriously weakened | 63 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 62 |
| Nearside Rear Shock absorbers has a serious fluid leak | 61 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 59 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 56 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 56 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 56 |
| Offside Rear Shock absorbers has a serious fluid leak | 56 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 53 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 53 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 52 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 50 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 47 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 47 |