| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Brake pipe excessively corroded | 22 |
| Windscreen wiper does not clear the windscreen effectively | 12 |
| Parking brake: efficiency below requirements |3.7.B.7| | 11 |
| Service brake: efficiency below requirements |3.7.B.7| | 6 |
| Offside Stop lamp not working |1.2.1b| | 6 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 6 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 5 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 4 |
| Horn not working |1.6.2a| | 4 |
| Registration plate lamp issues | 4 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 4 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 3 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 3 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 2 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Registration plate issues | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Brakes imbalanced across an axle | 2 |
| Emissions not tested |7.0| | 2 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Brake pedal spongy |3.3.B.1b| | 2 |
| Nearside Front brake disc excessively scored |3.5.1h| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Rear position lamp|s| incomplete |1.1.4a| | 1 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Front Anti-roll bar fractured |2.4.G.1| | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Upper Stop lamp not working |1.2.1b| | 1 |
| Steering column movement between the shaft and steering wheel |2.1.2b| | 1 |
| Fuel cap/sealing device mounting flange/sealing method defective |7.2.4c| | 1 |
| Nearside Headlamp aim not tested |1.8.A.1c| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Offside Front brake disc excessively pitted |3.5.1h| | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Offside Headlamp insecure |1.7.3| | 1 |
| Offside Rear Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1| | 1 |
| Offside Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Offside Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Windscreen wiper blade insecure | 1 |
| Nearside Headlamp insecure |1.7.3| | 1 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 1 |
| Nearside Front Anti-roll bar linkage fractured |2.4.G.1| | 1 |
| Nearside Rear Brake valve leaking |3.6.A.1| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Outer Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Outer Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Battery insecure |1.9.1| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Offside Front Side repeater not working |1.4.A.2c| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Offside Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Centre Exhaust mounting missing |7.1.1b| | 1 |
| Rear Braking system leaking |3.6.A.1| | 1 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 1 |
| Brake pedal reservoir fluid level decreases after several brake applications |3.3.C.1| | 1 |
| Rear Brake valve leaking |3.6.A.1| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Exhaust has a part missing |7.1.1a| | 1 |
| Front brake disc excessively scored |3.5.1h| | 1 |
| Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Side repeater incomplete |1.5.A1b| | 1 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Nearside Front Road wheel badly damaged |4.2.A.1a| | 1 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 1 |
| Windscreen has damage | 1 |
| Nearside Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 1 |