| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 6400 |
| Headlamp aim out of alignment | 5795 |
| Registration plate lamp issues | 4603 |
| Windscreen wiper does not clear the windscreen effectively | 4189 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3453 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3001 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2894 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 2462 |
| Registration plate issues | 1965 |
| Brakes imbalanced across an axle | 1844 |
| Rear parking brake recording little or no effort | 1682 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1357 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1267 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1212 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1171 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1107 |
| Brake hose excessively deteriorated | 1079 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1025 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 967 |
| Horn not working |1.6.2a| | 951 |
| Offside Steering rack gaiter split |2.2.D.2d| | 932 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 927 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 827 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 823 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 822 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 771 |
| Nearside Stop lamp not working |1.2.1b| | 715 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 659 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 636 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 619 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 611 |
| Offside Stop lamp not working |1.2.1b| | 596 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 583 |
| Offside Rear fog lamp not working |1.3.2b| | 558 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 540 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 540 |
| Service brake: efficiency below requirements |3.7.B.7| | 532 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 527 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 519 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 505 |
| Parking brake lever has no reserve travel |3.1.6b| | 500 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 497 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 482 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 480 |
| Front brake disc in such a condition that it is seriously weakened | 459 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 458 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 454 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 423 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 420 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 420 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 415 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 406 |
| Front brake application uneven | 405 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 401 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 391 |
| Rear brake binding | 384 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 365 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 365 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 363 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 359 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 356 |
| Direction indicators incorrect colour |1.4.A.2f| | 351 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 341 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 339 |
| Emissions not tested |7.0| | 332 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 325 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 324 |
| Anti-lock braking system warning lamp indicates an ABS fault | 319 |
| Offside Headlamp not working on main beam |1.7.5a| | 301 |
| Rear brake disc in such a condition that it is seriously weakened | 300 |
| Windscreen has damage | 297 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 289 |
| Front position lamp|s| not working |1.1.A.3b| | 286 |
| Nearside Rear Stop lamp not working |1.2.1b| | 264 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 258 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 247 |
| Offside Rear Stop lamp not working |1.2.1b| | 242 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 239 |
| Nearside Headlamp not working on main beam |1.7.5a| | 239 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 233 |
| Offside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 229 |
| Rear brake application uneven | 227 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 220 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 218 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 216 |
| Battery insecure |1.9.1| | 212 |
| Nearside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 211 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 204 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 201 |
| Rear fog lamp tell tale not working |1.3.1b| | 198 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 198 |
| Rear fog lamp not working |1.3.2b| | 196 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 194 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 183 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 183 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 182 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 182 |
| Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 176 |
| Windscreen wiper blade insecure | 175 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 173 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 167 |
| Offside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 166 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 165 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 163 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 162 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 162 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 160 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 159 |
| All position lamps not working |1.1.A.3b| | 151 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 148 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 146 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 145 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 141 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 138 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 136 |
| Hazard warning switch faulty |1.4.B.1d| | 125 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 123 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 122 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 121 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 121 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 118 |
| Bonnet cannot be secured in the closed position |8.4.1| | 116 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 111 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 111 |
| Offside Outer Rear position lamp|s| not working |1.1.A.3b| | 109 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 106 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 106 |
| Direction indicator incorrect colour |1.4.A.2f| | 105 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 104 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 104 |
| Nearside Outer Rear position lamp|s| not working |1.1.A.3b| | 102 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 101 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 101 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 100 |
| Headlamp switch faulty |1.7.1| | 98 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 97 |
| Rear Mechanical brake component has restricted free movement | 96 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 93 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 93 |
| Offside Headlamp aim not tested |1.8.A.1c| | 92 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 92 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 91 |
| Offside Side repeater not working |1.4.A.2c| | 90 |
| Rear Exhaust system not adequately supported |7.1.1| | 90 |
| Nearside front brake binding |3.7.B.1| | 89 |