| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1862 |
| Registration plate lamp issues | 1708 |
| Windscreen wiper does not clear the windscreen effectively | 1149 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1008 |
| Rear parking brake recording little or no effort | 719 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 539 |
| Registration plate issues | 440 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 430 |
| Rear brake binding | 230 |
| Brakes imbalanced across an axle | 229 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 209 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 208 |
| Brake pipe excessively corroded | 205 |
| Offside Stop lamp not working |1.2.1b| | 202 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 200 |
| Nearside Stop lamp not working |1.2.1b| | 197 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 177 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 160 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 154 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 153 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 147 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 140 |
| Steering rack insecure |2.2.B.1a| | 134 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 132 |
| Nearside Rear Stop lamp not working |1.2.1b| | 112 |
| Offside Rear fog lamp not working |1.3.2b| | 110 |
| Rear brake disc in such a condition that it is seriously weakened | 106 |
| Offside Rear Stop lamp not working |1.2.1b| | 103 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 101 |
| Battery insecure |1.9.1| | 100 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 89 |
| Anti-lock braking system warning lamp indicates an ABS fault | 87 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 87 |
| Centre Stop lamp not working |1.2.1b| | 82 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 79 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 76 |
| Front brake disc in such a condition that it is seriously weakened | 75 |
| Windscreen has damage | 73 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 72 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 71 |
| Offside Front brake disc excessively pitted |3.5.1h| | 70 |
| Front brake application uneven | 69 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 69 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 68 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 68 |
| Brake hose excessively deteriorated | 67 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 65 |
| Parking brake lever has no reserve travel |3.1.6b| | 65 |
| Horn not working |1.6.2a| | 64 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 64 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 60 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 60 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 56 |
| Offside Front coil spring broken |2.4.C.1a| | 53 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 52 |
| Windscreen wiper blade insecure | 52 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 51 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 51 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 49 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 49 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 47 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 46 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 46 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 46 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 46 |
| Rear Mechanical brake component has restricted free movement | 44 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 44 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 42 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 42 |
| Nearside Front coil spring broken |2.4.C.1a| | 41 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 41 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 38 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 35 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 35 |
| Front position lamp|s| not working |1.1.A.3b| | 35 |
| Emissions not tested |7.0| | 34 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 34 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 33 |
| Nearside Headlamp not working on main beam |1.7.5a| | 32 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 32 |
| Rear brake application uneven | 32 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 31 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 31 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 31 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 31 |
| Offside Front coil spring fractured |2.4.C.1a| | 30 |
| Rear Brake cable insecure | 29 |
| Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 29 |
| Stop lamp not working |1.2.1b| | 29 |
| Front brake disc excessively pitted |3.5.1h| | 28 |
| Offside front brake binding |3.7.B.1| | 27 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Offside Headlamp not working on main beam |1.7.5a| | 27 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 27 |
| Service brake: efficiency below requirements |3.7.B.7| | 26 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 26 |
| Front Front position lamp|s| not working |1.1.A.3b| | 25 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 25 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 25 |
| Nearside front brake binding |3.7.B.1| | 24 |
| Rear brake disc excessively pitted |3.5.1h| | 24 |
| Offside Rear coil spring broken |2.4.C.1a| | 24 |
| Fuel tank leaking |7.2.3| | 23 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 23 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 23 |