| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 526 |
| Windscreen wiper does not clear the windscreen effectively | 294 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 107 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 105 |
| Brake pipe excessively corroded | 103 |
| Registration plate lamp issues | 86 |
| Registration plate issues | 52 |
| Nearside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 44 |
| Offside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 40 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 29 |
| Offside Front Position lamp not working |4.2.1 |a|| | 27 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 27 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 24 |
| Offside Rear Shock absorbers has an excessively worn bush (5.3.2 (c)) | 23 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 22 |
| Nearside Headlamp insecure (4.1.1 (c)) | 22 |
| Nearside Rear Shock absorbers has an excessively worn bush (5.3.2 (c)) | 20 |
| Offside Rear Upper Shock absorbers has an excessively worn bush (5.3.2 (c)) | 20 |
| Windscreen washer not working | 19 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Nearside Rear Upper Shock absorbers has an excessively worn bush (5.3.2 (c)) | 19 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 17 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 17 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 16 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Horn not working (7.7 (a)) | 14 |
| Offside Headlamp insecure (4.1.1 (c)) | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 13 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 12 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Reversing lamp inoperative (4.6.1 (a)) | 11 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 10 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 9 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Brakes imbalanced across an axle | 9 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 8 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 8 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Brake performance not tested (1.2.1 (g)) | 8 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 7 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 7 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Offside Front Seat belt webbing significantly weakened (7.1.2 (b) (ii)) | 7 |
| Offside Headlamp insecure |4.1.1 |c|| | 7 |
| Nearside Headlamp insecure |4.1.1 |c|| | 7 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 7 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Offside Front Headlamp insecure (4.1.1 (c)) | 6 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Prop shaft joint excessively worn (6.1.7 (c) (i)) | 6 |
| Offside Rear Shock absorbers has a serious fluid leak | 6 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 6 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 6 |
| Offside Front Headlamp insecure |4.1.1 |c|| | 6 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 5 |
| Offside Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |