| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 504 |
| Brake pipe excessively corroded | 398 |
| Headlamp aim out of alignment | 316 |
| Windscreen wiper does not clear the windscreen effectively | 316 |
| Nearside Stop lamp not working |1.2.1b| | 110 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 110 |
| Offside Stop lamp not working |1.2.1b| | 107 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 103 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 103 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 99 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 89 |
| Registration plate issues | 84 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 74 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 72 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 70 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 62 |
| Offside Rear fog lamp not working |1.3.2b| | 56 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 48 |
| Anti-lock braking system warning lamp indicates an ABS fault | 46 |
| Offside Rear Stop lamp not working |1.2.1b| | 43 |
| Nearside Rear Stop lamp not working |1.2.1b| | 37 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 36 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 35 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 35 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 34 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 34 |
| Service brake: efficiency below requirements |3.7.C.1a| | 29 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 28 |
| Centre Stop lamp not working |1.2.1b| | 28 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Rear brake binding | 27 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 26 |
| Fuel system component leaking |7.2.3| | 24 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 22 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 21 |
| Parking brake lever has no reserve travel |3.1.6b| | 19 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 19 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 19 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 18 |
| Brake performance not tested |3.7.A.1| | 17 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 16 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 16 |
| Bonnet retaining device ineffective |8.4.2| | 16 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Rear fog lamp not working |1.3.2b| | 15 |
| Stop lamp not working |1.2.1b| | 15 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 15 |
| Brake hose excessively deteriorated | 15 |
| Offside Front Seat belt damaged sufficient to significantly weakened the webbing |5.2.2a| | 15 |
| Battery insecure |1.9.1| | 14 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 14 |
| Offside Front Seat belt stitching badly frayed |5.2.2b| | 14 |
| Emissions not tested |7.0| | 14 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 13 |
| Brakes imbalanced across an axle | 13 |
| Windscreen wiper blade insecure | 13 |
| Front brake disc in such a condition that it is seriously weakened | 13 |
| Nearside Rear Suspension arm corroded and seriously weakened |2.4.G.1| | 13 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 13 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 12 |
| Offside Rear coil spring broken |2.4.C.1a| | 12 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 11 |
| Windscreen has damage | 11 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 11 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 11 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 10 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 10 |
| 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| | 10 |
| Front position lamp|s| not working |1.1.A.3b| | 10 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 9 |
| Nearside Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 9 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 9 |
| 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| | 9 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 9 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 8 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 8 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 8 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 7 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 7 |
| Nearside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 7 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 7 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 7 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 7 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 7 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 7 |
| Offside Front Anti-lock braking system component excessively damaged |3.4.2| | 7 |
| Parking brake: efficiency below requirements |3.7.B.7| | 7 |