| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Brakes imbalanced across an axle | 6 |
| Brake pipe excessively corroded | 6 |
| Front brake application uneven | 6 |
| Windscreen wiper does not clear the windscreen effectively | 4 |
| Horn not working |1.6.2a| | 3 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 2 |
| Rear brake binding | 2 |
| Emissions not tested |7.0| | 2 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 2 |
| Rear brake application uneven | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Offside Steering rack gaiter insecure |2.2.D.2d| | 1 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Offside Front Windscreen wiper blade missing |8.2.2| | 1 |
| Nearside Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Nearside Front Body has a sharp edge caused by damage |6.1.C.1| | 1 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Body has a sharp edge caused by corrosion |6.1.C.1| | 1 |
| Headlamp switch insecure |1.7.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Trailer electrical socket insecure |1.9.3a| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Upper Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Nearside Front Shock absorber insecure |2.7.2b| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Registration plate lamp issues | 1 |
| Exhaust engine idle speed too high |7.3.A.2a| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Registration plate issues | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2| | 1 |
| Windscreen wiper blade insecure | 1 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Nearside Upper Stop lamp not working |1.2.1b| | 1 |
| Nearside Lower Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Electrical wiring damaged and bare wires exposed |1.9.2c| | 1 |
| Nearside Electrical wiring deteriorated and bare wires exposed |1.9.2c| | 1 |
| Trailer electrical socket |13 pin| not operating the trailer lamps as intended |1.9.4| | 1 |
| Rear Electrical wiring damaged and bare wires exposed |1.9.2c| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Side repeater not working |1.4.A.2c| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |