| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 503 |
| Windscreen wiper does not clear the windscreen effectively | 462 |
| Registration plate lamp issues | 419 |
| Headlamp aim out of alignment | 417 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 141 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 126 |
| Parking brake: efficiency below requirements |3.7.B.7| | 123 |
| Brakes imbalanced across an axle | 103 |
| Registration plate issues | 99 |
| Rear parking brake recording little or no effort | 96 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 79 |
| Offside front brake binding |3.7.B.1| | 60 |
| Rear brake disc in such a condition that it is seriously weakened | 57 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 56 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 51 |
| Rear brake binding | 51 |
| Offside Stop lamp not working |1.2.1b| | 49 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 45 |
| Parking brake lever has no reserve travel |3.1.6b| | 44 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 44 |
| Front brake disc in such a condition that it is seriously weakened | 44 |
| Nearside Stop lamp not working |1.2.1b| | 43 |
| Offside Front front brake binding |3.7.B.1| | 41 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 41 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 41 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 40 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 39 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 36 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 33 |
| Nearside front brake binding |3.7.B.1| | 32 |
| Service brake: efficiency below requirements |3.7.B.7| | 32 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 31 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 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 Front Front position lamp|s| not working |1.1.A.3b| | 29 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 26 |
| Offside Rear Stop lamp not working |1.2.1b| | 26 |
| Offside Front brake disc excessively pitted |3.5.1h| | 25 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 25 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 24 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 23 |
| 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| | 22 |
| Offside Front Sub-frame corroded and seriously weakened |2.4.G.1| | 22 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 21 |
| Windscreen wiper blade insecure | 21 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 21 |
| Nearside Rear brake caliper leaking |3.6.A.1| | 20 |
| Nearside Rear Stop lamp not working |1.2.1b| | 20 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 20 |
| 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| | 19 |
| Offside Rear brake caliper leaking |3.6.A.1| | 19 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 19 |
| Horn not working |1.6.2a| | 18 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Nearside Front front brake binding |3.7.B.1| | 18 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 18 |
| Mechanical brake component has restricted free movement | 17 |
| Front brake disc excessively pitted |3.5.1h| | 17 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 16 |
| Offside Rear Braking system leaking |3.6.A.1| | 16 |
| 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| | 15 |
| Nearside Side repeater not working |1.4.A.2c| | 15 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 15 |
| 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| | 15 |
| Rear brake application uneven | 15 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 14 |
| 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| | 14 |
| Nearside Rear Braking system leaking |3.6.A.1| | 14 |
| Front brake application uneven | 14 |
| 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| | 14 |
| Rear brake disc excessively pitted |3.5.1h| | 14 |
| Front Sub-frame corroded and seriously weakened |2.4.G.1| | 13 |
| Offside Rear fog lamp not working |1.3.2b| | 13 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 12 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Front position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 12 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 12 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 12 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 11 |
| Offside Headlamp insecure |1.7.3| | 11 |
| Windscreen has damage | 11 |
| 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| | 11 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 11 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Nearside Front constant velocity joint is excessively worn |2.5.C.1b| | 10 |
| Offside Front Headlamp insecure |1.7.3| | 9 |
| Offside Front constant velocity joint is excessively worn |2.5.C.1b| | 9 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 9 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 9 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 9 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 9 |
| Offside Side repeater not working |1.4.A.2c| | 9 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 9 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Battery insecure |1.9.1| | 9 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Emissions not tested |7.0| | 8 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 8 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Nearside Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 8 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 8 |
| Bonnet cannot be secured in the closed position |8.4.1| | 7 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Offside Front brake disc excessively scored |3.5.1h| | 7 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 7 |
| Driver`s seat insecure |6.2.A.1| | 7 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 7 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Rear Brake clevis joint has restricted free movement |3.5.1k| | 7 |