| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 936 |
| Windscreen wiper does not clear the windscreen effectively | 322 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 247 |
| Registration plate issues | 229 |
| Windscreen washer not working | 195 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 142 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 128 |
| Offside Rear Shock absorbers has a serious fluid leak | 91 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 83 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 73 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 66 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 66 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 64 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 62 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 59 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 57 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 55 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 55 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 53 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 52 |
| Nearside Front Shock absorbers has a serious fluid leak | 49 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 49 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 44 |
| Nearside Rear Shock absorbers has a serious fluid leak | 42 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 42 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 41 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 40 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 35 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 33 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 32 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 29 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 28 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 27 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 26 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 25 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 25 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 25 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 23 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 23 |
| Offside Front Seat belt retracting mechanism defective (7.1.2 (e)) | 23 |
| Electronic parking brake control inoperative (1.1.6 (d)) | 23 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 23 |
| Brakes imbalanced across an axle | 21 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 20 |
| Exhaust emissions - engine idle speed too high (8.2.1.2 (e)) | 20 |
| Electronic parking brake control defective so that it cannot be satisfactorily operated (1.1.6 (d)) | 19 |
| Nearside Rear Road wheel fractured (5.2.2 (a)) | 19 |
| Horn not working (7.7 (a)) | 19 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 18 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 18 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 18 |
| Front brake disc in such a condition that it is seriously weakened | 16 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Nearside Front Seat belt retracting mechanism defective (7.1.2 (e)) | 16 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 16 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 15 |