| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 751 |
| Registration plate issues | 166 |
| Windscreen wiper does not clear the windscreen effectively | 125 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 117 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 114 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 87 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 84 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 71 |
| Windscreen washer not working | 67 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 46 |
| Reversing lamp inoperative (4.6.1 (a)) | 42 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 39 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 33 |
| Horn not working (7.7 (a)) | 33 |
| Rear brake disc in such a condition that it is seriously weakened | 29 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 29 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 27 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 26 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 22 |
| Brakes imbalanced across an axle | 21 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 20 |
| Nearside Rear Reversing lamp inoperative (4.6.1 (a)) | 19 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 18 |
| Offside Rear Reversing lamp inoperative (4.6.1 (a)) | 16 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 15 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Offside Front Front fog lamp not working (4.5.1 (a) (ii)) | 14 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 14 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 14 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 13 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 13 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 13 |
| Rear Reversing lamp inoperative (4.6.1 (a)) | 13 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 13 |
| Front brake disc in such a condition that it is seriously weakened | 13 |
| Nearside Reversing lamp inoperative (4.6.1 (a)) | 12 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 12 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 12 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Offside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 12 |
| Offside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 10 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 10 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 10 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 9 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 9 |
| Nearside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 9 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Nearside Side repeater with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 9 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii)) | 9 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 9 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |