| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 139 |
| Brake pipe excessively corroded | 94 |
| Headlamp aim out of alignment | 79 |
| Registration plate lamp issues | 24 |
| Rear brake binding | 17 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Brakes imbalanced across an axle | 14 |
| Front brake disc in such a condition that it is seriously weakened | 12 |
| Rear brake disc in such a condition that it is seriously weakened | 10 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 9 |
| Registration plate issues | 9 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Front brake excessively fluctuating | 6 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Windscreen washer not working | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 5 |
| Offside Front Position lamp not working |4.2.1 |a|| | 5 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 5 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 4 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Brake pedal spongy |3.3.B.1b| | 3 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 2 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 2 |
| Nearside Rear Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 2 |
| Electronic stability control switch not functioning correctly (7.12 (d)) | 2 |
| Offside Rear Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 2 |
| rear parking |secondary| brakes imbalanced | 2 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Mechanical brake component has restricted free movement | 2 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 2 |
| Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Nearside Rear Valve stem seriously damaged |4.1.D.1e| | 2 |
| Offside Rear Valve stem seriously damaged |4.1.D.1e| | 2 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Nearside Headlamp insecure (4.1.1 (c)) | 2 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Battery insecure |1.9.1| | 2 |
| Fuel system component leaking filler neck (6.1.3 (b) (i)) | 2 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |