| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 227 |
| Registration plate lamp issues | 96 |
| Windscreen wiper does not clear the windscreen effectively | 87 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 80 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 75 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 62 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 62 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 49 |
| Windscreen washer not working | 36 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 25 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 19 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Registration plate issues | 15 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Brakes imbalanced across an axle | 13 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 12 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 12 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 11 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 11 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 10 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 10 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 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 |
| Offside Front Headlamp insecure (4.1.1 (c)) | 8 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Front brake disc in such a condition that it is seriously weakened | 8 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 7 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 7 |
| Offside Rear Shock absorbers has a serious fluid leak | 7 |
| Nearside Rear Shock absorbers has a serious fluid leak | 7 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 6 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 6 |
| Brake hydraulic reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 6 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 6 |
| Fuel cap/sealing device missing (6.1.3 (b) (i)) | 6 |
| Horn not working (7.7 (a)) | 5 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 5 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Headlamp insecure (4.1.1 (c)) | 5 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii)) | 5 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 5 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Rear fog lamp switch inoperative (4.5.3 (a)) | 5 |