| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 139 |
| Windscreen wiper does not clear the windscreen effectively | 134 |
| Registration plate lamp issues | 106 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 95 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 73 |
| Brake pipe excessively corroded | 70 |
| Parking brake: efficiency below requirements |3.7.B.7| | 64 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 50 |
| Rear parking brake recording little or no effort | 45 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 43 |
| Offside Stop lamp not working |1.2.1b| | 39 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 38 |
| Brakes imbalanced across an axle | 38 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 36 |
| Nearside Stop lamp not working |1.2.1b| | 36 |
| Service brake: efficiency below requirements |3.7.B.7| | 31 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 29 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 29 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 26 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 26 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 24 |
| Rear brake binding | 24 |
| Registration plate issues | 22 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 22 |
| Emissions not tested |7.0| | 22 |
| Nearside Rear Stop lamp not working |1.2.1b| | 19 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 18 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 18 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 17 |
| Offside Side repeater not working |1.4.A.2c| | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Nearside Side repeater not working |1.4.A.2c| | 14 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 13 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 13 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 13 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 12 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 12 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 12 |
| Windscreen has damage | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 11 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 11 |
| Centre Stop lamp not working |1.2.1b| | 9 |
| Rear brake application uneven | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Front brake application uneven | 8 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 8 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 7 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 7 |
| Battery insecure |1.9.1| | 7 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 7 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Windscreen wiper blade insecure | 7 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 7 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Stop lamp not working |1.2.1b| | 6 |
| Centre Front Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| 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| | 5 |
| Offside Headlamp not working on main beam |1.7.5a| | 5 |
| Offside front brake binding |3.7.B.1| | 5 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 5 |
| 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| | 5 |
| Offside Front Side repeater not working |1.4.A.2c| | 5 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 5 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Headlamp insecure |1.7.3| | 5 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| 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| | 4 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 4 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 4 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Bootlid cannot be secured in the closed position |6.4.1| | 4 |
| Nearside Front Headlamp insecure |1.7.3| | 4 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 4 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 4 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 4 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 4 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| Nearside Front Side repeater not working |1.4.A.2c| | 4 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside front brake binding |3.7.B.1| | 4 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 3 |
| Fuel tank leaking |7.2.3| | 3 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 3 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 3 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 3 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Centre Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 3 |
| Mechanical brake component has restricted free movement | 3 |
| Brake hose damaged | 3 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Front Exhaust system not adequately supported |7.1.1| | 3 |