| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 686 |
| Headlamp aim out of alignment | 258 |
| Registration plate lamp issues | 251 |
| Windscreen wiper does not clear the windscreen effectively | 221 |
| Parking brake: efficiency below requirements |3.7.B.7| | 169 |
| Rear parking brake recording little or no effort | 137 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 116 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 106 |
| Brakes imbalanced across an axle | 101 |
| Centre Stop lamp not working |1.2.1b| | 68 |
| Registration plate issues | 67 |
| Rear brake binding | 51 |
| Battery insecure |1.9.1| | 50 |
| Fuel system component leaking |7.2.3| | 41 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 41 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 40 |
| Parking brake lever has no reserve travel |3.1.6b| | 38 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 38 |
| Offside Stop lamp not working |1.2.1b| | 34 |
| Service brake: efficiency below requirements |3.7.B.7| | 30 |
| Anti-lock braking system warning lamp indicates an ABS fault | 29 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Front brake disc in such a condition that it is seriously weakened | 29 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 29 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 29 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 28 |
| Front brake application uneven | 28 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 26 |
| Offside Rear Stop lamp not working |1.2.1b| | 26 |
| Offside Rear fog lamp not working |1.3.2b| | 23 |
| Rear brake application uneven | 23 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 23 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 22 |
| Stop lamp not working |1.2.1b| | 19 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Nearside Stop lamp not working |1.2.1b| | 15 |
| Nearside Rear Stop lamp not working |1.2.1b| | 15 |
| Brake performance not tested |3.7.A.1| | 15 |
| Rear fog lamp not working |1.3.2b| | 14 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 14 |
| Front position lamp|s| not working |1.1.A.3b| | 14 |
| Nearside Front Brake pipe leaking |3.6.A.1| | 13 |
| Offside front brake binding |3.7.B.1| | 12 |
| Centre Rear Stop lamp not working |1.2.1b| | 12 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 12 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 11 |
| Offside Front front brake binding |3.7.B.1| | 11 |
| Offside Front Brake pipe leaking |3.6.A.1| | 10 |
| 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| | 10 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Windscreen wiper blade insecure | 10 |
| Horn not working |1.6.2a| | 9 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Fuel pipe leaking |7.2.3| | 9 |
| Rear Mechanical brake component has restricted free movement | 8 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 8 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 8 |
| Centre Upper Stop lamp not working |1.2.1b| | 8 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 8 |
| Windscreen has damage | 7 |
| Offside Front brake disc excessively pitted |3.5.1h| | 7 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 7 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Fuel tank leaking |7.2.3| | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 7 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 6 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 6 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 6 |
| Nearside Headlamp insecure |1.7.3| | 6 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 6 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Offside Rear Macpherson strut corroded and seriously weakened |2.4.G.1| | 6 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 6 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 6 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Nearside Front front brake binding |3.7.B.1| | 6 |
| Nearside Headlamp not working on main beam |1.7.5a| | 6 |
| Brake hose excessively deteriorated | 6 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 6 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Nearside front brake juddering severely |3.7.A.2b| | 6 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Braking system leaking |3.6.A.1| | 5 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 5 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Front Fuel system component leaking |7.2.3| | 5 |
| Nearside Front All position lamps not working |1.1.A.3b| | 5 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Windscreen washer not working | 5 |
| Offside Headlamp not working on main beam |1.7.5a| | 5 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| 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| | 5 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 5 |
| Offside Front brake disc excessively scored |3.5.1h| | 5 |
| Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Front Macpherson strut corroded and seriously weakened |2.4.G.1| | 5 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 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 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Front brake excessively fluctuating | 5 |