| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 5970 |
| Windscreen wiper does not clear the windscreen effectively | 2949 |
| Headlamp aim out of alignment | 2733 |
| Brake pipe excessively corroded | 1557 |
| Rear brake binding | 1263 |
| Brakes imbalanced across an axle | 1056 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 987 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 937 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 877 |
| Parking brake: efficiency below requirements |3.7.B.7| | 863 |
| Front brake disc in such a condition that it is seriously weakened | 862 |
| Rear brake disc in such a condition that it is seriously weakened | 814 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 785 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 706 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 697 |
| Registration plate issues | 677 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 647 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 565 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 553 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 532 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 528 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 526 |
| Rear parking brake recording little or no effort | 525 |
| Centre Stop lamp not working |1.2.1b| | 493 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 467 |
| Offside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 451 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 438 |
| Nearside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 393 |
| Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 336 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 331 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 318 |
| Front brake application uneven | 307 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 261 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 253 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 249 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 247 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 246 |
| Rear Mechanical brake component has restricted free movement | 231 |
| Offside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 222 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 222 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 219 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 213 |
| Battery insecure |1.9.1| | 207 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 204 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 196 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 195 |
| Parking brake lever has no reserve travel |3.1.6b| | 195 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 188 |
| Nearside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 188 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 187 |
| Anti-lock braking system warning lamp indicates an ABS fault | 181 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 180 |
| Offside front brake binding |3.7.B.1| | 178 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 178 |
| Horn not working |1.6.2a| | 178 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 178 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 175 |
| Nearside Outer Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 175 |
| Offside Front brake disc excessively pitted |3.5.1h| | 169 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 152 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 150 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 142 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 142 |
| Offside Outer Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 138 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 136 |
| Nearside Front Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 135 |
| Offside Rear fog lamp not working |1.3.2b| | 133 |
| Offside Front Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 132 |
| Service brake: efficiency below requirements |3.7.B.7| | 129 |
| Nearside Front constant velocity joint is insecure |2.5.C.1b| | 127 |
| Offside Front Front constant velocity joint is insecure |2.5.C.1b| | 125 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 125 |
| Offside Front constant velocity joint is insecure |2.5.C.1b| | 119 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 116 |
| Brake hose damaged | 113 |
| Front brake excessively fluctuating | 112 |
| Brake hose excessively deteriorated | 107 |
| Windscreen wiper blade insecure | 106 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 106 |
| Nearside front brake binding |3.7.B.1| | 104 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 103 |
| Offside Stop lamp not working |1.2.1b| | 102 |
| Stop lamp not working |1.2.1b| | 101 |
| Hazard warning switch faulty |1.4.B.1d| | 99 |
| Front brake disc excessively pitted |3.5.1h| | 99 |
| Windscreen has damage | 98 |
| Nearside Stop lamp not working |1.2.1b| | 98 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 96 |
| Emissions not tested |7.0| | 93 |
| Rear brake application uneven | 92 |
| Offside Front front brake binding |3.7.B.1| | 92 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 92 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 90 |
| Nearside Front Front constant velocity joint is insecure |2.5.C.1b| | 89 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 87 |
| Rear brake disc excessively pitted |3.5.1h| | 86 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 86 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 84 |
| Centre Rear Stop lamp not working |1.2.1b| | 83 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 79 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 78 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 78 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 77 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 75 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 75 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 74 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 73 |
| Brake hose has insufficient room to move | 71 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 70 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 70 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 70 |
| Mechanical brake component has restricted free movement | 69 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 69 |
| Rear fog lamp not working |1.3.2b| | 69 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 68 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 68 |