| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 5 |
| Windscreen wiper does not clear the windscreen effectively | 5 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Registration plate lamp issues | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Offside Front Headlamp adversely affected by the operation of another lamp |1.7.5c| | 1 |
| Dipswitch operation does not deflect all main beam headlamps to make them dipped beams |1.7.4b| | 1 |
| Offside Front Brake pipe stretched |found during steering lock to lock check| |2.2.D.2b| | 1 |
| Nearside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Side repeater not working |1.4.A.2c| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Side repeater missing |1.4.A.2b| | 1 |
| Offside Side repeater missing |1.4.A.2b| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Rear Valve stem seriously damaged LEAKING AIR WHEN MOVED |4.1.D.1e| | 1 |
| Front brake application uneven | 1 |
| front brakes release unevenly |3.7.B.4| | 1 |
| Brakes imbalanced across an axle | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Front Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 1 |
| Brake performance unable to be tested pipe leak (1.2.1 (g)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Emissions unable to be completed exhaust blow (8.2.1.2 (d)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |