| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4163 |
| Windscreen wiper does not clear the windscreen effectively | 3411 |
| Registration plate lamp issues | 1565 |
| Windscreen washer not working | 971 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 833 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 684 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 678 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 652 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 432 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 420 |
| Brake pipe excessively corroded | 400 |
| Anti-lock braking system warning lamp indicates an ABS fault | 389 |
| Registration plate issues | 383 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 355 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 334 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 323 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 272 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 271 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 267 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 263 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 260 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 251 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 245 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 241 |
| Nearside Side repeater lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 240 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 235 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 233 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 230 |
| Front brake disc in such a condition that it is seriously weakened | 229 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 224 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 219 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 216 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 213 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 213 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 213 |
| Brakes imbalanced across an axle | 198 |
| Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 168 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 156 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 156 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 150 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 150 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 149 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 148 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 144 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 139 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 139 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 137 |
| Rear brake disc in such a condition that it is seriously weakened | 137 |
| Offside Side repeater lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 136 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 133 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 109 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 108 |
| Nearside Side repeater missing (4.4.1 (a) (ii)) | 102 |
| Nearside Side repeater incorrect colour (4.4.3 (a)) | 100 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 99 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 97 |
| Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 89 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 87 |
| Offside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 86 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 82 |
| Horn not working (7.7 (a)) | 79 |
| Nearside Front Side repeater lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 78 |
| Windscreen in an unacceptable condition (3.2 (c) (i)) | 72 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 71 |
| Reversing lamp inoperative (4.6.1 (a)) | 69 |
| Offside Side repeater incorrect colour (4.4.3 (a)) | 68 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 67 |