| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 688 |
| Brake pipe excessively corroded | 523 |
| Headlamp aim out of alignment | 354 |
| Brakes imbalanced across an axle | 263 |
| Registration plate lamp issues | 236 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 157 |
| Rear brake binding | 128 |
| Registration plate issues | 124 |
| Offside Stop lamp not working |1.2.1b| | 122 |
| Parking brake lever has no reserve travel |3.1.6b| | 118 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 107 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 103 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 95 |
| Service brake: efficiency below requirements |3.7.B.7| | 88 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 84 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 75 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 73 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 71 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 63 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 62 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 59 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 57 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 57 |
| Parking brake: efficiency below requirements |3.7.B.7| | 57 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 57 |
| Offside Rear Stop lamp not working |1.2.1b| | 56 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 55 |
| Rear brake application uneven | 51 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 48 |
| Offside Rear coil spring broken |2.4.C.1a| | 47 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 47 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 44 |
| Nearside Stop lamp not working |1.2.1b| | 43 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 39 |
| Nearside Rear coil spring broken |2.4.C.1a| | 38 |
| 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| | 37 |
| Offside front brake binding |3.7.B.1| | 35 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 35 |
| 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| | 35 |
| 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| | 33 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 32 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 32 |
| 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| | 31 |
| 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| | 30 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 30 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| 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| | 28 |
| Windscreen wiper blade insecure | 27 |
| Front brake application uneven | 26 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 25 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 24 |
| Windscreen has damage | 24 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside front brake binding |3.7.B.1| | 23 |
| Emissions not tested |7.0| | 22 |
| Offside Front front brake binding |3.7.B.1| | 22 |
| Rear parking brake recording little or no effort | 22 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 21 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 21 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 20 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 18 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 18 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 17 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 17 |
| 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| | 17 |
| 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| | 16 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 16 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Nearside Front front brake binding |3.7.B.1| | 15 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 15 |
| Rear Mechanical brake component has restricted free movement | 13 |
| Stop lamp not working |1.2.1b| | 12 |
| Anti-lock braking system warning lamp indicates an ABS fault | 12 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 12 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 11 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 10 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 10 |
| Horn not working |1.6.2a| | 10 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 10 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 10 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 10 |
| Offside Rear coil spring fractured |2.4.C.1a| | 10 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Offside Front Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 9 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 9 |
| Battery insecure |1.9.1| | 9 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 9 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 9 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 9 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 9 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 9 |