| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1474 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1339 |
| Brake pipe excessively corroded | 1240 |
| Headlamp aim out of alignment | 1190 |
| Windscreen wiper does not clear the windscreen effectively | 961 |
| Rear parking brake recording little or no effort | 825 |
| Brakes imbalanced across an axle | 368 |
| Registration plate issues | 355 |
| Parking brake lever has no reserve travel |3.1.6b| | 311 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 282 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 266 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 239 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 210 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 204 |
| Rear brake binding | 196 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 164 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 162 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 135 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 132 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 128 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 120 |
| Offside Stop lamp not working |1.2.1b| | 119 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 119 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 113 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 111 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 105 |
| Anti-lock braking system warning lamp indicates an ABS fault | 101 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 95 |
| Nearside Stop lamp not working |1.2.1b| | 95 |
| Battery insecure |1.9.1| | 94 |
| Rear brake disc in such a condition that it is seriously weakened | 90 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 88 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 88 |
| Front brake application uneven | 85 |
| Front brake disc in such a condition that it is seriously weakened | 85 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 83 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 82 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 75 |
| Rear brake application uneven | 74 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 70 |
| Service brake: efficiency below requirements |3.7.B.7| | 68 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 67 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 66 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 65 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 65 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 65 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 64 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 64 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 59 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 57 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 56 |
| Offside Rear Stop lamp not working |1.2.1b| | 56 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 55 |
| Emissions not tested |7.0| | 54 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 51 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 49 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 49 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 47 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 46 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 46 |
| Offside front brake binding |3.7.B.1| | 45 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 43 |
| Nearside Rear Stop lamp not working |1.2.1b| | 43 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 43 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 42 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 42 |
| Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 42 |
| 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| | 41 |
| Windscreen wiper blade insecure | 38 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 35 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 35 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 35 |
| Offside Headlamp not working on main beam |1.7.5a| | 34 |
| Windscreen has damage | 34 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 34 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 34 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 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 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 33 |
| Rear brake disc excessively pitted |3.5.1h| | 33 |
| Rear Mechanical brake component has restricted free movement | 32 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 31 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 30 |
| Offside Brake cable has wires broken and is significantly weakened |3.5.1b| | 28 |
| 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| | 28 |
| Offside 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 Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 27 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 27 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Nearside front brake binding |3.7.B.1| | 27 |
| Nearside Headlamp not working on main beam |1.7.5a| | 26 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 26 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 26 |
| 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| | 25 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 25 |
| Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 24 |
| 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| | 24 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 24 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 23 |
| Offside Front Power steering pipe|s| or hose|s| leaking |2.3.3b| | 23 |
| Nearside Front Suspension arm corroded and seriously weakened |2.4.G.1| | 23 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 23 |
| 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| | 22 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 22 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 21 |
| Offside Rear fog lamp not working |1.3.2b| | 21 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 20 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 20 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 20 |
| Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 20 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 20 |
| 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| | 19 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 19 |
| Nearside Front Lower Suspension arm corroded and seriously weakened |2.4.G.1| | 19 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 19 |