| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 20 |
| Brake pipe excessively corroded | 15 |
| Parking brake: efficiency below requirements |3.7.B.7| | 15 |
| Rear parking brake recording little or no effort | 10 |
| Service brake: efficiency below requirements |3.7.B.7| | 10 |
| Windscreen wiper does not clear the windscreen effectively | 7 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Brakes imbalanced across an axle | 5 |
| Brake load sensing valve linkage defective and function impaired |3.6.E.3| | 4 |
| Brake pipe leaking |3.6.A.1| | 3 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 3 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Nearside Rear brake disc contaminated by oil |3.5.1h| | 2 |
| Braking system leaking |3.6.A.1| | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Brake hose has insufficient room to move | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Headlamp aim out of alignment | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Side repeater not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Outline marker lamp not working |4.2.1 |a| |ii|| | 1 |
| Brake pipe at imminent risk of failure or fracture rear to front |1.1.11 |a|| | 1 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Nearside Rear Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Upper Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 1 |
| Nearside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Windscreen has damage | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Battery insecure |1.9.1| | 1 |
| Nearside Front position lamp|s| not working side marker |1.1.A.3b| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings outrigger |6.1.B.2| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings inner arch |6.1.B.2| | 1 |
| Horn not working |1.6.2a| | 1 |
| Brake load sensing valve seized |3.6.E.3| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Front Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Centre Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Offside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded inner wing |3.6.C.3| | 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 Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Fuel cap/sealing device missing key missing |7.2.4a| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Windscreen washer not working | 1 |
| Offside Rear Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Offside Front Lower Suspension arm corroded and seriously weakened |5.3.3 |b| |i|| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Headlamp insecure |1.7.3| | 1 |
| Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Bonnet retaining device ineffective |8.4.2| | 1 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 1 |
| Nearside Rear Leaf spring has excessive wear in an anchor pin and/or bush |2.4.B.2| | 1 |
| Offside Rear Leaf spring has excessive wear in an anchor pin and/or bush |2.4.B.2| | 1 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Inner Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Inner Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Outer Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Outer Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Rear brake binding | 1 |
| front brake binding |3.7.B.1| | 1 |
| Nearside Front Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Rear Inner Valve stem seriously damaged |4.1.D.1e| | 1 |
| Offside Rear Inner Valve stem seriously damaged |4.1.D.1e| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |