| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 528 |
| Windscreen wiper does not clear the windscreen effectively | 500 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 130 |
| Registration plate lamp issues | 125 |
| Registration plate issues | 124 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 84 |
| Windscreen washer not working | 75 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 61 |
| Front brake disc in such a condition that it is seriously weakened | 46 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 45 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 35 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 34 |
| Brakes imbalanced across an axle | 33 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 29 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 28 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 26 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 23 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 22 |
| Offside Front Shock absorbers has a serious fluid leak | 22 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 20 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 18 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 18 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 18 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 18 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 18 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 16 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 15 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 15 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 15 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 12 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 12 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Emissions not tested (8.2.1.2 (d)) | 11 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Nearside Front Shock absorbers has a serious fluid leak | 11 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 10 |
| Offside Front Headlamp insecure (4.1.1 (c)) | 10 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 10 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 8 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Horn not working (7.7 (a)) | 8 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |