| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 12514 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 9006 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 5665 |
| Windscreen wiper does not clear the windscreen effectively | 4753 |
| Registration plate lamp issues | 4562 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 4227 |
| Headlamp aim out of alignment | 3360 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2262 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2140 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 1874 |
| Nearside Stop lamp not working |1.2.1b| | 1585 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1532 |
| Offside Stop lamp not working |1.2.1b| | 1490 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1470 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1400 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1284 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1131 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1075 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1047 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 989 |
| Emissions not tested |7.0| | 979 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 978 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 941 |
| Rear parking brake recording little or no effort | 917 |
| Registration plate issues | 807 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 671 |
| Service brake: efficiency below requirements |3.7.B.7| | 665 |
| Parking brake lever has no reserve travel |3.1.6b| | 640 |
| Offside Rear Stop lamp not working |1.2.1b| | 588 |
| Front Exhaust system not adequately supported |7.1.1| | 573 |
| Nearside Rear Stop lamp not working |1.2.1b| | 567 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 554 |
| Centre Stop lamp not working |1.2.1b| | 506 |
| Service brake: efficiency below requirements |3.7.C.1a| | 505 |
| Brakes imbalanced across an axle | 500 |
| Rear brake binding | 499 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 480 |
| Battery insecure |1.9.1| | 458 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 452 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 429 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 408 |
| Front brake disc in such a condition that it is seriously weakened | 386 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 350 |
| Horn not working |1.6.2a| | 339 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 330 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 317 |
| Windscreen has damage | 294 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 283 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 273 |
| Nearside Steering rack gaiter insecure |2.2.D.2d| | 269 |
| Nearside Rear Braking system leaking |3.6.A.1| | 252 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 251 |
| Brake performance not tested |3.7.A.1| | 249 |
| Offside Rear fog lamp not working |1.3.2b| | 236 |
| Exhaust system not adequately supported |7.1.1| | 231 |
| Power steering component|s| leaking |2.3.3b| | 217 |
| Windscreen wiper blade insecure | 203 |
| Brake hose excessively deteriorated | 203 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 198 |
| Offside Rear Braking system leaking |3.6.A.1| | 198 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 192 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 191 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 191 |
| Stop lamp not working |1.2.1b| | 191 |
| Nearside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 189 |
| Power steering pump leaking from a failed component |2.3.3b| | 186 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 186 |
| Offside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 185 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 184 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 182 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 181 |
| Rear Exhaust system not adequately supported |7.1.1| | 170 |
| Offside front brake binding |3.7.B.1| | 159 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 157 |
| Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 155 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 155 |
| Nearside Rear Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 155 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 151 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 146 |
| Offside Front brake disc excessively pitted |3.5.1h| | 142 |
| Offside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 142 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 138 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 138 |
| Offside Rear Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 137 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 136 |
| Rear Mechanical brake component has restricted free movement | 127 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 127 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 127 |
| Offside Headlamp not working on main beam |1.7.5a| | 123 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 122 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 118 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 118 |
| Nearside Rear wheel cylinder leaking |3.6.A.1| | 117 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 114 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 111 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 108 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 107 |
| Front brake application uneven | 106 |
| Brake pedal spongy |3.3.B.1b| | 106 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 106 |
| Centre Rear Stop lamp not working |1.2.1b| | 105 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 104 |