| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 118 |
| Brake pipe excessively corroded | 46 |
| Registration plate issues | 38 |
| Windscreen wiper does not clear the windscreen effectively | 34 |
| Registration plate lamp issues | 24 |
| Front brake disc in such a condition that it is seriously weakened | 14 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 9 |
| Rear brake disc in such a condition that it is seriously weakened | 9 |
| Brakes imbalanced across an axle | 9 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 7 |
| Front brake excessively fluctuating | 7 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 3 |
| Windscreen has damage | 3 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Offside Front Headlamp cleaning device for LED or HID headlamp inoperative |4.1.6 |a| |ii|| | 3 |
| Rear parking brake recording little or no effort | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Brake performance not tested (1.2.1 (g)) | 3 |
| Offside Front Valve stem seriously damaged |4.1.D.1e| | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Nearside Headlamp cleaning device inoperative |1.7.2| | 2 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 2 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 2 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Rear fog lamp not working |1.3.2b| | 2 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 2 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear Shock absorbers insecurely attached (5.3.2 (a) (i)) | 2 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 2 |
| Nearside Rear Valve stem seriously damaged |4.1.D.1e| | 2 |
| Rear brake application uneven | 2 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 2 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |