| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1017 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 288 |
| Windscreen wiper does not clear the windscreen effectively | 234 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 202 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 147 |
| Windscreen washer not working | 144 |
| Registration plate issues | 107 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 101 |
| Rear brake disc in such a condition that it is seriously weakened | 86 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 82 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 63 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 55 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 52 |
| Central Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 49 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 49 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 47 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 45 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 44 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 42 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 42 |
| Offside Rear Shock absorbers has a serious fluid leak | 42 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 41 |
| Nearside Rear Shock absorbers has a serious fluid leak | 41 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 41 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 36 |
| Nearside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 35 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 34 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 33 |
| Nearside Front Headlamp insecure (4.1.1 (c)) | 32 |
| Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 31 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 31 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 30 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 30 |
| Brakes imbalanced across an axle | 30 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 28 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 25 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 24 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 23 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 23 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 22 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 22 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 22 |
| Horn not working (7.7 (a)) | 20 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 19 |
| Offside Front Headlamp insecure (4.1.1 (c)) | 17 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Anti-lock braking system warning lamp indicates an ABS fault | 15 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 15 |
| Nearside Headlamp insecure (4.1.1 (c)) | 15 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 15 |