| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1456 |
| Headlamp aim out of alignment | 1415 |
| Front brake disc in such a condition that it is seriously weakened | 303 |
| Registration plate lamp issues | 292 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 285 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 171 |
| Brakes imbalanced across an axle | 168 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 159 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 158 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 140 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 117 |
| Windscreen washer not working | 108 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 106 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 104 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 98 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 94 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 88 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 86 |
| Brake pipe excessively corroded | 84 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 78 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 75 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 72 |
| Registration plate issues | 71 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 70 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 69 |
| All direction indicators not working (4.4.1 (a) (ii)) | 67 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 64 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 63 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 62 |
| Hazard warning switch faulty |1.4.B.1d| | 53 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 52 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 48 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 47 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 47 |
| Rear Exhaust system insecure (6.1.2 (a)) | 46 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 42 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 42 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 40 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 39 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 39 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 37 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 37 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 33 |
| Front brake excessively fluctuating | 33 |
| Nearside Front Road wheel badly distorted (5.2.2 (c) (i)) | 31 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 31 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 31 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 30 |
| Windscreen wiper blade insecure | 30 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 29 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 27 |
| Offside Rear Shock absorbers has a serious fluid leak | 27 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Emissions not tested (8.2.1.2 (d)) | 27 |