| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 10610 |
| Registration plate lamp issues | 5210 |
| Headlamp aim out of alignment | 4766 |
| Windscreen wiper does not clear the windscreen effectively | 4670 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3640 |
| Rear parking brake recording little or no effort | 3105 |
| Brakes imbalanced across an axle | 2246 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1793 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1731 |
| Nearside Stop lamp not working |1.2.1b| | 1215 |
| Offside Stop lamp not working |1.2.1b| | 1184 |
| Registration plate issues | 1076 |
| Rear brake binding | 1066 |
| Centre Stop lamp not working |1.2.1b| | 1027 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 904 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 794 |
| Service brake: efficiency below requirements |3.7.B.7| | 753 |
| Parking brake lever has no reserve travel |3.1.6b| | 648 |
| Battery insecure |1.9.1| | 616 |
| Front brake disc in such a condition that it is seriously weakened | 554 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 552 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 547 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 545 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 505 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 487 |
| Offside Rear Stop lamp not working |1.2.1b| | 471 |
| Rear brake application uneven | 469 |
| Nearside Rear Stop lamp not working |1.2.1b| | 465 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 463 |
| Offside Rear fog lamp not working |1.3.2b| | 435 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 410 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 384 |
| Rear Exhaust system not adequately supported |7.1.1| | 366 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 355 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 330 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 324 |
| Front brake application uneven | 316 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 290 |
| Stop lamp not working |1.2.1b| | 282 |
| Rear fog lamp not working |1.3.2b| | 276 |
| Anti-lock braking system warning lamp indicates an ABS fault | 257 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 255 |
| Emissions not tested |7.0| | 248 |
| Horn not working |1.6.2a| | 247 |
| Centre Rear Stop lamp not working |1.2.1b| | 234 |
| Offside Front Brake pipe leaking |3.6.A.1| | 220 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 214 |
| Windscreen wiper blade insecure | 204 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 199 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 196 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 186 |
| Windscreen has damage | 183 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 175 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 168 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 168 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 167 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 167 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 163 |
| Offside front brake binding |3.7.B.1| | 158 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 154 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 153 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 149 |
| Front position lamp|s| not working |1.1.A.3b| | 145 |
| Rear Mechanical brake component has restricted free movement | 140 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 137 |
| Stop lamp remains on when the brakes are released | 137 |
| Nearside Headlamp not working on main beam |1.7.5a| | 130 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 130 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 129 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 128 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 127 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 124 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 123 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 120 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 119 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 118 |
| Brake performance not tested |3.7.A.1| | 118 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 118 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 117 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 116 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 109 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 105 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 103 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 103 |
| Upper Stop lamp not working |1.2.1b| | 99 |
| Rear Stop lamp not working |1.2.1b| | 99 |
| Exhaust system not adequately supported |7.1.1| | 99 |
| Offside Headlamp not working on main beam |1.7.5a| | 96 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 95 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 95 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 94 |
| Nearside Front Brake pipe leaking |3.6.A.1| | 94 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 93 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 92 |
| Nearside front brake binding |3.7.B.1| | 92 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 90 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 90 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 89 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 88 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 87 |
| Exhaust emits dense blue smoke at idle |7.3.A.2b| | 86 |
| Offside Front brake disc excessively pitted |3.5.1h| | 86 |