| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 747 |
| Windscreen wiper does not clear the windscreen effectively | 611 |
| Brake pipe excessively corroded | 541 |
| Headlamp aim out of alignment | 461 |
| Registration plate issues | 359 |
| Brakes imbalanced across an axle | 268 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 203 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 170 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 121 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 118 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 96 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 94 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 94 |
| Offside front brake binding |3.7.B.1| | 92 |
| Brake hose excessively deteriorated | 79 |
| Nearside front brake binding |3.7.B.1| | 79 |
| Offside Front brake disc excessively pitted |3.5.1h| | 74 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 72 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 72 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 71 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 67 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 64 |
| Emissions not tested |7.0| | 64 |
| Front brake disc in such a condition that it is seriously weakened | 59 |
| Front brake application uneven | 56 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 52 |
| Nearside Stop lamp not working |1.2.1b| | 50 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 48 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 48 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 47 |
| Parking brake lever has no reserve travel |3.1.6b| | 46 |
| 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 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 43 |
| Offside Stop lamp not working |1.2.1b| | 43 |
| 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| | 40 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 40 |
| Mechanical brake component has restricted free movement | 40 |
| Anti-lock braking system warning lamp indicates an ABS fault | 39 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 39 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 39 |
| Windscreen wiper blade insecure | 39 |
| Rear parking brake recording little or no effort | 39 |
| Rear Exhaust has a part missing |7.1.1a| | 38 |
| Rear Exhaust system not adequately supported |7.1.1| | 37 |
| Parking brake: efficiency below requirements |3.7.B.7| | 36 |
| Windscreen has damage | 35 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 33 |
| 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| | 32 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 32 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 32 |
| 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| | 31 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 31 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 31 |
| Horn not working |1.6.2a| | 31 |
| Offside Front front brake binding |3.7.B.1| | 30 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 30 |
| Nearside Front front brake binding |3.7.B.1| | 30 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 30 |
| 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| | 29 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 29 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 28 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 28 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 28 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 28 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 28 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 27 |
| Battery insecure |1.9.1| | 27 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 26 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 26 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 26 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 26 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 26 |
| Service brake: efficiency below requirements |3.7.B.7| | 25 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 25 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 24 |
| Rear brake application uneven | 23 |
| 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| | 23 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 23 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 21 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 21 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 21 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 20 |
| 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| | 20 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Nearside Rear Stop lamp not working |1.2.1b| | 19 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 19 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 18 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 18 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 18 |
| 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| | 18 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 18 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 17 |
| 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| | 17 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 17 |
| Offside Rear Stop lamp not working |1.2.1b| | 17 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Offside Rear fog lamp not working |1.3.2b| | 17 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Offside Front brake disc excessively scored |3.5.1h| | 16 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 16 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 16 |
| Exhaust has a part missing |7.1.1a| | 15 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 15 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 15 |
| Exhaust system not adequately supported |7.1.1| | 15 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 15 |
| Front brake disc excessively pitted |3.5.1h| | 15 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 14 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 13 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 13 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 13 |
| Offside Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 13 |
| Nearside Rear Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 13 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 12 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 12 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 12 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 12 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Nearside Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 12 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 12 |