| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 499 |
| Windscreen wiper does not clear the windscreen effectively | 374 |
| Windscreen washer not working | 76 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 66 |
| Registration plate lamp issues | 48 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 45 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 37 |
| Registration plate issues | 36 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 32 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 27 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 22 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 22 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 19 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 17 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 13 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Offside Front Front fog lamp not working (4.5.1 (a) (ii)) | 11 |
| Brakes imbalanced across an axle | 11 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 10 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 10 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 9 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 8 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Nearside Front fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 7 |
| Nearside Front Headlamp aim unable to be tested (4.1.2 (b)) | 7 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Anti-lock braking system warning lamp indicates an ABS fault | 7 |
| Brake performance unable to be tested (1.2.1 (g)) | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Offside Front Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 7 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Nearside Front Front fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Offside Side repeater lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 5 |
| Horn not working (7.7 (a)) | 4 |
| Offside Front Headlamp aim unable to be tested (4.1.2 (b)) | 4 |
| Nearside Headlamp aim unable to be tested (4.1.2 (b)) | 4 |
| Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 4 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 4 |
| Rear brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |