| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 101 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 60 |
| Registration plate issues | 43 |
| Windscreen wiper does not clear the windscreen effectively | 25 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 20 |
| Steering rack insecure to the extent there is excessive movement at the mountings (2.1.3 (a) (ii)) | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Central Rear Seat belt not functioning as intended (7.1.2 (c)) | 4 |
| Windscreen washer not working | 4 |
| Trailer electrical socket (13 pin) not operating the trailer lamps as intended (4.10 (c) (i)) | 4 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Nearside Front Shock absorbers has a serious fluid leak | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Reversing lamp inoperative (4.6.1 (a)) | 2 |
| Nearside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Anti-roll bar pin or bush excessively worn D bush (5.3.4 (a) (i)) | 2 |
| Offside Front Anti-roll bar pin or bush excessively worn D bush (5.3.4 (a) (i)) | 2 |
| Offside Rear Rear fog lamp does not emit a steady red light (4.5.4 (a)) | 2 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |
| Trailer electrical socket (13 pin) not functioning at all (4.10 (c) (ii)) | 2 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 2 |
| Central Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 2 |
| Steering rack has relative movement to chassis/bodywork (2.1.2 (a) (ii)) | 2 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 2 |
| Brakes imbalanced across an axle | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |