| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 417 |
| Windscreen wiper does not clear the windscreen effectively | 332 |
| Registration plate lamp issues | 125 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 83 |
| Windscreen washer not working | 74 |
| Front Exhaust system insecure (6.1.2 (a)) | 68 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 57 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 56 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 54 |
| Front brake disc in such a condition that it is seriously weakened | 53 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 46 |
| Registration plate issues | 43 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 39 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 36 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 33 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 33 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 32 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 30 |
| Brakes imbalanced across an axle | 29 |
| Nearside Headlamp insecure (4.1.1 (c)) | 29 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 28 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 27 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 25 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 24 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 24 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 23 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 23 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 22 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 22 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 22 |
| Horn not working (7.7 (a)) | 19 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Offside Front Headlamp insecure (4.1.1 (c)) | 18 |
| Anti-lock braking system warning lamp indicates an ABS fault | 18 |
| Horn not working (7.7 (a) (ii)) | 18 |
| Exhaust system insecure (6.1.2 (a)) | 17 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 15 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Offside Headlamp insecure (4.1.1 (c)) | 13 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 12 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 11 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 10 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 10 |
| Fuel cap/sealing device missing (6.1.3 (b) (i)) | 9 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 8 |
| Nearside Side repeater missing (4.4.1 (a) (ii)) | 8 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 8 |