| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 980 |
| Registration plate lamp issues | 881 |
| Parking brake: efficiency below requirements |3.7.B.7| | 817 |
| Windscreen wiper does not clear the windscreen effectively | 753 |
| Brake pipe excessively corroded | 666 |
| Rear parking brake recording little or no effort | 489 |
| Registration plate issues | 428 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 400 |
| Hazard warning switch faulty |1.4.B.1d| | 391 |
| Brake hose excessively deteriorated | 367 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 366 |
| Anti-lock braking system warning lamp indicates an ABS fault | 355 |
| Brakes imbalanced across an axle | 318 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 307 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 301 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 288 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 276 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 243 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 238 |
| Parking brake lever has no reserve travel |3.1.6b| | 234 |
| Nearside Headlamp not working on main beam |1.7.5a| | 232 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 230 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 230 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 229 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 227 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 219 |
| Nearside Stop lamp not working |1.2.1b| | 216 |
| Nearside Side repeater not working |1.4.A.2c| | 209 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 200 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 198 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 187 |
| Offside Stop lamp not working |1.2.1b| | 185 |
| Offside Side repeater not working |1.4.A.2c| | 179 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 178 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 172 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 169 |
| Emissions not tested |7.0| | 164 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 162 |
| Fuel system component insecure |7.2.1| | 154 |
| Rear Exhaust system not adequately supported |7.1.1| | 135 |
| Service brake: efficiency below requirements |3.7.B.7| | 133 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 132 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 129 |
| Exhaust system not adequately supported |7.1.1| | 117 |
| Offside Headlamp not working on main beam |1.7.5a| | 110 |
| Centre Exhaust system not adequately supported |7.1.1| | 110 |
| Offside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 108 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 102 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 101 |
| Windscreen has damage | 100 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 99 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 93 |
| Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 90 |
| Offside Rear Stop lamp not working |1.2.1b| | 87 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 87 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 87 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 86 |
| Steering column will not lock in a fixed position |adjustable type| |2.1.2a| | 85 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 83 |
| Front Exhaust system not adequately supported |7.1.1| | 77 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 73 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 71 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 70 |
| Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 69 |
| Brake hose damaged | 68 |
| Rear Exhaust mounting missing |7.1.1b| | 68 |
| Nearside Front Side repeater not working |1.4.A.2c| | 68 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 68 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 68 |
| Nearside Rear Stop lamp not working |1.2.1b| | 66 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 65 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 65 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 65 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 64 |
| Front brake application uneven | 64 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 63 |
| Offside Rear fog lamp not working |1.3.2b| | 63 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 63 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 61 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 60 |
| Rear brake disc in such a condition that it is seriously weakened | 58 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 58 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 56 |
| Exhaust mounting missing |7.1.1b| | 56 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 54 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 54 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 52 |
| Centre Exhaust mounting missing |7.1.1b| | 51 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 51 |
| Front brake disc in such a condition that it is seriously weakened | 51 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 50 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 48 |
| Hazard warning switch missing |1.4.B.1d| | 47 |
| Rear brake binding | 46 |
| Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 46 |
| Centre Stop lamp not working |1.2.1b| | 45 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 45 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 45 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 45 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 44 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 44 |
| Hazard warning lamps inoperative |1.4.B.1b| | 42 |
| Front Exhaust mounting missing |7.1.1b| | 40 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 40 |
| Offside Front Side repeater not working |1.4.A.2c| | 40 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 40 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 40 |
| Offside Steering rack gaiter split |2.2.D.2d| | 40 |
| Centre Rear Statutory seat belt missing |5.1.1| | 39 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 38 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 37 |
| Headlamp switch faulty |1.7.1| | 36 |
| Windscreen wiper blade insecure | 36 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 36 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 35 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 35 |
| Nearside Front Suspension arm attachment bracket/mounting cracked |2.4.G.1| | 35 |
| Rear Fuel system component insecure |7.2.1| | 35 |
| Offside Rear Fuel system component insecure |7.2.1| | 34 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 34 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 34 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 32 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 31 |
| Headlamp not working on main beam |1.7.5a| | 30 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 30 |
| Battery insecure |1.9.1| | 30 |
| Hazard warning switch insecure |1.4.B.1d| | 30 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 29 |
| Stop lamp not working |1.2.1b| | 29 |
| Headlamp not in good working order adversely affecting beam image |1.2.4a| | 28 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 28 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 26 |
| Horn not working |1.6.2a| | 26 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 26 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 25 |
| Offside front brake binding |3.7.B.1| | 25 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 24 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 23 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 22 |
| Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 22 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 22 |