| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 1945 |
| Windscreen wiper does not clear the windscreen effectively | 1807 |
| Registration plate lamp issues | 1707 |
| Headlamp aim out of alignment | 1652 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 935 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 667 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 658 |
| Brakes imbalanced across an axle | 622 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 565 |
| Offside Stop lamp not working |1.2.1b| | 503 |
| Nearside Stop lamp not working |1.2.1b| | 490 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 394 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 392 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 380 |
| Registration plate issues | 345 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 329 |
| Parking brake: efficiency below requirements |3.7.B.7| | 299 |
| Rear brake binding | 283 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 282 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 262 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 260 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 255 |
| Emissions not tested |7.0| | 248 |
| Service brake: efficiency below requirements |3.7.B.7| | 245 |
| Offside Rear fog lamp not working |1.3.2b| | 242 |
| Rear parking brake recording little or no effort | 231 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 224 |
| Rear brake application uneven | 218 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 199 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 194 |
| Nearside Rear Stop lamp not working |1.2.1b| | 179 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 177 |
| Offside Rear Stop lamp not working |1.2.1b| | 172 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 139 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 138 |
| Parking brake lever has no reserve travel |3.1.6b| | 132 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 128 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 123 |
| Front brake application uneven | 114 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 113 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 113 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 113 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 109 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 102 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 94 |
| Windscreen has damage | 91 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 87 |
| Centre Stop lamp not working |1.2.1b| | 85 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 82 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 80 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 78 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 76 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 74 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 68 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 66 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 65 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 65 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 63 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 63 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 63 |
| Windscreen wiper blade insecure | 60 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 60 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 60 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 59 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 57 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 56 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 56 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 56 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 55 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 54 |
| Stop lamp not working |1.2.1b| | 54 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 53 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 52 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 51 |
| Nearside Side repeater insecure |1.4.A.2b| | 48 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 47 |
| Offside front brake binding |3.7.B.1| | 47 |
| Power steering component|s| leaking |2.3.3b| | 47 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 47 |
| Offside Headlamp insecure |1.7.3| | 46 |
| Rear Mechanical brake component has restricted free movement | 45 |
| Nearside Headlamp insecure |1.7.3| | 45 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 44 |
| Direction indicator incorrect colour |1.4.A.2f| | 44 |
| Battery insecure |1.9.1| | 44 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 42 |
| Front brake disc in such a condition that it is seriously weakened | 41 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 39 |
| Horn not working |1.6.2a| | 39 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 39 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 39 |
| Brake hose excessively deteriorated | 38 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 35 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 35 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 33 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 33 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 33 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 33 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 33 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 32 |
| Nearside front brake binding |3.7.B.1| | 32 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 31 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 31 |