| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 832 |
| Headlamp aim out of alignment | 325 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 141 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 72 |
| Registration plate issues | 63 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 45 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 28 |
| Windscreen washer not working | 27 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 21 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 21 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 20 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Registration plate lamp issues | 17 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 13 |
| Brakes imbalanced across an axle | 13 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 12 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 11 |
| Anti-lock braking system warning lamp indicates an ABS fault | 10 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 9 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 9 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 8 |
| Nearside Rear Shock absorbers has a serious fluid leak | 7 |