| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate lamp issues | 5 |
| Service brake: efficiency below requirements |3.7.B.7| | 5 |
| Registration plate issues | 5 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Brake pipe excessively corroded | 3 |
| Brakes imbalanced across an axle | 3 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 3 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Windscreen wiper does not clear the windscreen effectively | 3 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Position lamp switch faulty |1.1.A.1| | 2 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Brake hose excessively deteriorated | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 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 |
| Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Battery insecure |1.9.1| | 1 |
| Parking brake lever releases when knocked |3.1.6a| | 1 |
| Offside Rear Electrical wiring deteriorated, likely to cause a short |1.9.2b| | 1 |
| Electrical wiring inadequately supported |1.9.2a| | 1 |
| Brake load sensing valve linkage seized |3.6.E.3| | 1 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Steering column top bearing excessively worn |2.1.2c| | 1 |
| Ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Nearside Rear Tie bar/rod locating pin insecure |2.4.G.3a| | 1 |
| Offside Rear Leaf spring to axle securing bolt missing |2.4.B.7b| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Rear Radius arm attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1| | 1 |
| Offside Direction indicator flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside front brake binding |3.7.B.1| | 1 |
| Nearside Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i|| | 1 |
| Offside Front Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Hazard warning switch faulty |1.4.B.1d| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Rear Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Steering arm has relative movement at its fixings steering damper |2.2.B.1h| | 1 |
| Nearside Front Upper Shock absorber insecure |2.7.2b| | 1 |
| Offside Rear Upper Shock absorber insecure bolt loose |2.7.2b| | 1 |
| Nearside Rear Body has a sharp edge caused by corrosion wheel arch |6.1.C.1| | 1 |
| Nearside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings inner wheel arch |6.1.B.2| | 1 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings inner wheel arch/body mount |6.1.B.2| | 1 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings crossmember |6.1.B.2| | 1 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings body mount/chassis |6.1.B.2| | 1 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Axle has inadequate clearance with the bump stop incorrectly adjusted axle restricting ball joint movement |2.4.A.1a| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Seat belt anchorage prescribed area strength or continuity significantly reduced inner sill (7.1.1 (a) (i)) | 1 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner wheel arch (5.3.6 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Rear fog lamp tell-tale missing (4.9.1 (a) (ii)) | 1 |
| Nearside Front Upper Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Upper Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 1 |