| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1449 |
| Windscreen wiper does not clear the windscreen effectively | 1097 |
| Headlamp aim out of alignment | 1016 |
| Brake pipe excessively corroded | 537 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 530 |
| Offside Stop lamp not working |1.2.1b| | 343 |
| Nearside Stop lamp not working |1.2.1b| | 320 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 310 |
| Brakes imbalanced across an axle | 300 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 234 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 224 |
| Battery insecure |1.9.1| | 221 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 189 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 161 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 148 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 148 |
| Offside Headlamp not working on main beam |1.7.5a| | 143 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 138 |
| Offside Rear fog lamp not working |1.3.2b| | 135 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 134 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 131 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 126 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 124 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 123 |
| Nearside Rear Stop lamp not working |1.2.1b| | 116 |
| Registration plate issues | 115 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 114 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 113 |
| Parking brake lever has no reserve travel |3.1.6b| | 108 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 108 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 107 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 104 |
| Parking brake: efficiency below requirements |3.7.B.7| | 103 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 98 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 97 |
| Offside Rear Stop lamp not working |1.2.1b| | 94 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 93 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 88 |
| Emissions not tested |7.0| | 87 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 87 |
| 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| | 84 |
| Windscreen has damage | 76 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 74 |
| Front brake application uneven | 74 |
| 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| | 71 |
| Service brake: efficiency below requirements |3.7.B.7| | 65 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 64 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 64 |
| Horn not working |1.6.2a| | 63 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 61 |
| Rear parking brake recording little or no effort | 60 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 52 |
| Rear fog lamp not working |1.3.2b| | 51 |
| Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 51 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 50 |
| Brake hose excessively deteriorated | 49 |
| Rear fog lamp tell tale not working |1.3.1b| | 48 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 47 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 47 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 47 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 47 |
| Windscreen wiper blade insecure | 46 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 45 |
| Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 43 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 42 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 42 |
| Offside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 41 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 40 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 39 |
| Nearside Headlamp not working on main beam |1.7.5a| | 37 |
| Offside Headlamp insecure |1.7.3| | 36 |
| Nearside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 35 |
| Centre Stop lamp not working |1.2.1b| | 34 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 34 |
| Fuel tank leaking |7.2.3| | 33 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 32 |
| Offside front brake binding |3.7.B.1| | 31 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 31 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 29 |
| Offside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 26 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 26 |
| Offside Front Direction indicator not working |1.4.A.2c| | 26 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 26 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 26 |
| Rear Stop lamp not working |1.2.1b| | 25 |
| Rear brake binding | 25 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 25 |
| Nearside front brake binding |3.7.B.1| | 25 |
| Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 24 |
| Fuel system component leaking |7.2.3| | 24 |
| Offside Front front brake binding |3.7.B.1| | 23 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 23 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 22 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 22 |
| Stop lamp not working |1.2.1b| | 22 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 22 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 22 |
| Nearside Headlamp insecure |1.7.3| | 22 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 22 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 22 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 21 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 21 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 20 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 20 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Rear fog lamp switch faulty |1.3.1a| | 20 |