| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 909 |
| Headlamp aim out of alignment | 705 |
| Registration plate lamp issues | 530 |
| Windscreen wiper does not clear the windscreen effectively | 385 |
| Parking brake: efficiency below requirements |3.7.B.7| | 383 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 329 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 294 |
| Brake hose excessively deteriorated | 239 |
| Registration plate issues | 203 |
| Rear parking brake recording little or no effort | 176 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 167 |
| Brakes imbalanced across an axle | 166 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 158 |
| Offside Rear fog lamp not working |1.3.2b| | 148 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 148 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 145 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 132 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 99 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 99 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 91 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 87 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 83 |
| Nearside Stop lamp not working |1.2.1b| | 83 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 81 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 81 |
| Offside Stop lamp not working |1.2.1b| | 75 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 63 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 61 |
| Rear fog lamp tell tale not working |1.3.1b| | 61 |
| Parking brake lever has no reserve travel |3.1.6b| | 60 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 59 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 57 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 55 |
| Front brake disc in such a condition that it is seriously weakened | 54 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 54 |
| Rear brake binding | 52 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 52 |
| Anti-lock braking system warning lamp indicates an ABS fault | 52 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 50 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 50 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 50 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 47 |
| Front brake application uneven | 46 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 45 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 44 |
| Windscreen has damage | 41 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 41 |
| Rear brake disc in such a condition that it is seriously weakened | 39 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 38 |
| Windscreen wiper blade insecure | 37 |
| Front position lamp|s| not working |1.1.A.3b| | 37 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 36 |
| Direction indicators incorrect colour |1.4.A.2f| | 36 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 35 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 35 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 32 |
| Hazard warning switch faulty |1.4.B.1d| | 32 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 31 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 31 |
| Service brake: efficiency below requirements |3.7.B.7| | 31 |
| Offside Rear Stop lamp not working |1.2.1b| | 31 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 30 |
| Rear fog lamp not working |1.3.2b| | 29 |
| Nearside Rear Stop lamp not working |1.2.1b| | 29 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 29 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 28 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 28 |
| Horn not working |1.6.2a| | 26 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 26 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 26 |
| Offside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 26 |
| All position lamps not working |1.1.A.3b| | 26 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 24 |
| Direction indicator incorrect colour |1.4.A.2f| | 24 |
| Rear Rear fog lamp not working |1.3.2b| | 24 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 23 |
| Brake hose damaged | 22 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 22 |
| Emissions not tested |7.0| | 22 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 21 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 20 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 20 |
| Nearside Headlamp not working on main beam |1.7.5a| | 20 |
| Offside Headlamp not working on main beam |1.7.5a| | 19 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 19 |
| Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 19 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 18 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 18 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 18 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 17 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 17 |
| Bonnet cannot be secured in the closed position |8.4.1| | 16 |
| Nearside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 15 |
| Nearside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 15 |
| Nearside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 15 |
| Offside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 14 |
| Nearside Rear Front position lamp|s| not working |1.1.A.3b| | 14 |
| Battery insecure |1.9.1| | 14 |
| Rear brake disc excessively pitted |3.5.1h| | 14 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 14 |
| Offside Front coil spring fractured |2.4.C.1a| | 13 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 13 |
| Headlamp switch faulty |1.7.1| | 13 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 13 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Front All position lamps not working |1.1.A.3b| | 13 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 13 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 13 |
| Rear brake application uneven | 13 |
| Nearside Front All position lamps not working |1.1.A.3b| | 13 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 13 |
| Offside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 12 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 12 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 12 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 11 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 11 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Side repeater incorrect colour |1.4.A.2f| | 11 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 10 |
| Rear fog lamp switch faulty |1.3.1a| | 10 |
| Offside front brake binding |3.7.B.1| | 10 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 10 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 10 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 10 |
| Offside Front brake disc excessively pitted |3.5.1h| | 10 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Offside Rear Trailing arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Nearside front brake binding |3.7.B.1| | 9 |
| Nearside Rear Trailing arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Fuel system component leaking |7.2.3| | 9 |
| Offside Rear brake disc excessively scored |3.5.1h| | 9 |
| Offside Rear Front position lamp|s| not working |1.1.A.3b| | 9 |
| Mechanical brake component has restricted free movement | 9 |
| Position lamp switch faulty |1.1.A.1| | 9 |
| Nearside front brake juddering severely |3.7.A.2b| | 9 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 9 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 9 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 9 |