| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4251 |
| Windscreen wiper does not clear the windscreen effectively | 1502 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 1317 |
| Windscreen washer not working | 798 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 711 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 631 |
| Registration plate issues | 592 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 539 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 478 |
| Registration plate lamp issues | 411 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 371 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 292 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 283 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 268 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 261 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 260 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 254 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 249 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 247 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 241 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 208 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 206 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 183 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 159 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 159 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 154 |
| Brakes imbalanced across an axle | 148 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 146 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 144 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 138 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 134 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 132 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 125 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 121 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 105 |
| Exhaust emissions exceed default limit of 0.7m-1 |8.2.2.2 |b|| | 103 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 101 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 100 |
| Offside Front Position lamp not working |4.2.1 |a|| | 100 |
| Front brake disc in such a condition that it is seriously weakened | 96 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 92 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 91 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 87 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 81 |
| Offside Rear Shock absorbers has a serious fluid leak | 80 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 80 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 78 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 77 |
| Anti-lock braking system warning lamp indicates an ABS fault | 77 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 76 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 74 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 70 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 69 |