| Most common failures | No# failures |
|---|
| Brakes imbalanced across an axle | 17 |
| Windscreen wiper does not clear the windscreen effectively | 17 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 12 |
| Brake pipe excessively corroded | 10 |
| Registration plate lamp issues | 10 |
| Parking brake: efficiency below requirements |3.7.B.7| | 7 |
| Exhaust emissions hydrocarbon content excessive |7.3.B.1b| | 6 |
| Front brake application uneven | 6 |
| Headlamp aim out of alignment | 6 |
| Rear parking brake recording little or no effort | 6 |
| Nearside Stop lamp not working |1.2.1b| | 5 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Rear Exhaust system not adequately supported |7.1.1| | 4 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Nearside Headlamp not working on main beam |1.7.5a| | 3 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Offside Headlamp insecure |1.7.3| | 3 |
| Nearside Headlamp insecure |1.7.3| | 3 |
| front brakes release unevenly |3.7.B.4| | 3 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Offside Front Headlamp insecure |1.7.3| | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Rear brake application uneven | 3 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Brake hose excessively deteriorated | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Offside Obligatory mirror insecure |8.1.1| | 2 |
| Registration plate issues | 2 |
| Nearside Obligatory mirror missing |8.1.1| | 2 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Horn not working |1.6.2a| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 2 |
| Brake pedal spongy |3.3.B.1b| | 2 |
| Fuel system component leaking |7.2.3| | 2 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Rear Exhaust mounting missing |7.1.1b| | 2 |
| Emissions not tested |7.0| | 2 |
| Windscreen washer not working | 2 |
| Exhaust system not adequately supported |7.1.1| | 2 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Semaphore indicator tell tale not working correctly |1.4.C.2| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Front Steering component mounting prescribed area is excessively corroded |2.2.C.1h| | 1 |
| Front Windscreen washer control missing |8.2.1a| | 1 |
| Nearside Front front brake juddering severely |3.7.A.2b| | 1 |
| Offside Front front brake juddering severely |3.7.A.2b| | 1 |
| Offside Rear front brake juddering severely |3.7.A.2b| | 1 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Nearside front brake grabbing severely |3.7.A.2b| | 1 |
| Nearside front brake juddering severely |3.7.A.2b| | 1 |
| Offside front brake juddering severely |3.7.A.2b| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Offside Front Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Centre Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Fuel system component insecure |7.2.1| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 1 |
| Mechanical brake component has restricted free movement | 1 |
| Direction indicators flashing less than 60 times a minute all indicators |1.4.A.2g| | 1 |
| Exhaust has a major leak of exhaust gases rear section |7.1.2| | 1 |
| Exhaust has a major leak of exhaust gases middle section |7.1.2| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front front brake binding |3.7.B.1| | 1 |
| Nearside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Front Braking system leaking |3.6.A.1| | 1 |
| Nearside Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear front brake grabbing severely |3.7.A.2b| | 1 |
| Offside Front Braking system leaking |3.6.A.1| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Inner Stop lamp not working |1.2.1b| | 1 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Front front brake binding |3.7.B.1| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Front Body has a projection caused by corrosion |6.1.C.1| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Rear Exhaust has a part missing |7.1.1a| | 1 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Centre Front Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Nearside Obligatory mirror insecure |8.1.1| | 1 |
| Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Offside Obligatory mirror does not provide a view to the rear |8.1.2b| | 1 |
| Nearside Front Steering component mounting prescribed area is excessively corroded |2.2.C.1h| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front Seat belt flexible stalk deteriorated likely to lead to failure under load |5.2.4a| | 1 |
| Rear Brake pipe inappropriately repaired incorrect fitting |3.6.A.3| | 1 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Seat belt missing (7.1.2 (a)) | 1 |
| Offside Front Inner Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Front Cab steps so insecure it is likely to cause injury (6.2.8 (a) (ii)) | 1 |
| Nearside Front Cab steps so insecure it is likely to cause injury (6.2.8 (a) (ii)) | 1 |
| Offside Front Floor excessively deteriorated (6.2.4 (a) (i)) | 1 |
| Nearside Front Floor excessively deteriorated (6.2.4 (a) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Front Service brake excessively fluctuating |1.2.1 |e|| | 1 |
| Nearside Direction indicator not working |1.4.A.2c| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Front Upper Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Exhaust mounting missing |7.1.1b| | 1 |
| Offside Front Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Body has a sharp edge caused by corrosion |6.1.C.1| | 1 |
| Offside Body has a sharp edge caused by corrosion |6.1.C.1| | 1 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b| | 1 |
| Offside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Offside Front Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Offside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Rear Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Dipswitch operation does not deflect all main beam headlamps to make them dipped beams |1.7.4b| | 1 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Towbar component insecure |6.6.1| | 1 |
| Electrical wiring inadequately supported |1.9.2a| | 1 |
| Exhaust engine idle speed too high |7.3.A.2a| | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Rear brake binding | 1 |
| Steering box has a significant oil leak |2.2.D.2e| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |