| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 5644 |
| Registration plate lamp issues | 4037 |
| Headlamp aim out of alignment | 2469 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2286 |
| Windscreen wiper does not clear the windscreen effectively | 1609 |
| Parking brake lever has no reserve travel |3.1.6b| | 1360 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1094 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1005 |
| Rear parking brake recording little or no effort | 985 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 968 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 636 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 560 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 476 |
| Registration plate issues | 439 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 426 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 426 |
| Offside Rear coil spring fractured |2.4.C.1a| | 416 |
| Offside Stop lamp not working |1.2.1b| | 374 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 351 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 334 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 333 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 312 |
| Brakes imbalanced across an axle | 296 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 295 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 292 |
| Nearside Stop lamp not working |1.2.1b| | 292 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 290 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 289 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 274 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 272 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 262 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 260 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 254 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 230 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 230 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 227 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 226 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 210 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 208 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 205 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 197 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 194 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 194 |
| Emissions not tested |7.0| | 191 |
| Direction indicators incorrect colour |1.4.A.2f| | 185 |
| Service brake: efficiency below requirements |3.7.B.7| | 185 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 184 |
| Bonnet cannot be secured in the closed position |8.4.1| | 178 |
| Offside Rear Stop lamp not working |1.2.1b| | 174 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 169 |
| Front brake disc in such a condition that it is seriously weakened | 169 |
| 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| | 163 |
| Brake hose excessively deteriorated | 160 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 159 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 159 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 158 |
| 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| | 155 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 154 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 149 |
| Offside Rear fog lamp not working |1.3.2b| | 147 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 144 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 137 |
| Rear brake disc in such a condition that it is seriously weakened | 137 |
| Nearside Rear Stop lamp not working |1.2.1b| | 135 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 131 |
| Windscreen has damage | 131 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 127 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 126 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 125 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 119 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 117 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 117 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 111 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 110 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 108 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 107 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 106 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 106 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 105 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 105 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 105 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 101 |
| Offside Front Direction indicator not working |1.4.A.2c| | 101 |
| Rear Exhaust system not adequately supported |7.1.1| | 101 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 100 |
| Nearside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 98 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 97 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 96 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 91 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 89 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 87 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 86 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 85 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 84 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 83 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 83 |
| Windscreen wiper blade insecure | 80 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 79 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 78 |
| Offside Rear Wheel bolt|s| missing |4.2.A.1e| | 76 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 76 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 75 |
| Offside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 75 |
| Brake performance not tested |3.7.A.1| | 75 |
| Rear brake binding | 74 |
| Direction indicator incorrect colour |1.4.A.2f| | 74 |
| Front brake application uneven | 71 |
| Offside Rear coil spring broken |2.4.C.1a| | 71 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 70 |
| Centre Stop lamp insecure |1.2.1a| | 68 |
| Rear brake disc excessively pitted |3.5.1h| | 59 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 58 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 58 |
| Horn not working |1.6.2a| | 57 |
| Exhaust system not adequately supported |7.1.1| | 56 |
| Offside Rear coil spring cracked |2.4.C.1a| | 54 |
| Offside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 53 |