| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 190 |
| Headlamp aim out of alignment | 125 |
| Windscreen washer not working | 24 |
| Brake pipe excessively corroded | 20 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 17 |
| Registration plate issues | 17 |
| Electronic parking brake control defective so that it cannot be satisfactorily operated (1.1.6 (d)) | 14 |
| Registration plate lamp issues | 13 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 11 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 9 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 7 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 7 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 7 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 7 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Front brake disc in such a condition that it is seriously weakened | 6 |
| Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 5 |
| Brake performance not tested (1.2.1 (g)) | 5 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 5 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Front Exhaust system insecure (6.1.2 (a)) | 4 |
| Rear brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Offside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Brakes imbalanced across an axle | 4 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Headlamp aim unable to be tested (4.1.2 (b)) | 3 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt Insecure (2.1.3 (g) (ii)) | 3 |
| Offside Rear Shock absorbers has a serious fluid leak | 3 |
| Brake performance unable to be tested (1.2.1 (g)) | 3 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 3 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt insecure (2.1.3 (g) (ii)) | 3 |
| Trailer electrical socket (13 pin) not operating the trailer lamps as intended (4.10 (c) (i)) | 3 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 3 |
| Electronic braking system warning device indicates a fault (1.7 (b)) | 3 |