| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 415 |
| Registration plate lamp issues | 207 |
| Headlamp aim out of alignment | 161 |
| Windscreen wiper does not clear the windscreen effectively | 131 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 58 |
| Anti-lock braking system warning lamp indicates an ABS fault | 58 |
| Parking brake: efficiency below requirements |3.7.B.7| | 57 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 50 |
| Rear parking brake recording little or no effort | 48 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 48 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 46 |
| Brakes imbalanced across an axle | 43 |
| Registration plate issues | 42 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 41 |
| Service brake: efficiency below requirements |3.7.B.7| | 41 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 40 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 38 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 35 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 34 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 31 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 29 |
| Rear brake binding | 28 |
| Emissions not tested |7.0| | 27 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 24 |
| Brake hose excessively deteriorated | 23 |
| Nearside Stop lamp not working |1.2.1b| | 23 |
| Offside Stop lamp not working |1.2.1b| | 19 |
| Windscreen has damage | 18 |
| Nearside Front Shock absorber has an excessively worn bush |2.7.4| | 18 |
| 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| | 17 |
| Fuel tank leaking |7.2.3| | 17 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Offside Rear fog lamp not working |1.3.2b| | 16 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 16 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| 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| | 15 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 14 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 14 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 13 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 13 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 12 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 12 |
| Offside 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 Lower Shock absorber has an excessively worn bush |2.7.4| | 11 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 11 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Brake pedal spongy |3.3.B.1b| | 11 |
| Rear fog lamp not working |1.3.2b| | 11 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 10 |
| Parking brake lever has no reserve travel |3.1.6b| | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Nearside Inner Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 9 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 9 |
| Rear brake disc in such a condition that it is seriously weakened | 9 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 9 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 8 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Offside front brake binding |3.7.B.1| | 8 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Service brake: efficiency below requirements |3.7.C.1a| | 8 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 8 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Offside Front Brake pipe leaking |3.6.A.1| | 7 |
| Brake performance not tested |3.7.A.1| | 7 |
| Battery insecure |1.9.1| | 7 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 7 |
| Offside Rear Stop lamp not working |1.2.1b| | 7 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| 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| | 6 |
| 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| | 6 |
| Offside Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 6 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 6 |
| 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| | 6 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Brake load sensing valve linkage seized |3.6.E.3| | 5 |
| 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| | 5 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 5 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 5 |
| Front brake application uneven | 5 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| 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| | 5 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 5 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 5 |
| Exhaust system not adequately supported |7.1.1| | 5 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 5 |
| Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Offside Front Braking system leaking |3.6.A.1| | 5 |
| Steering column top bearing excessively worn |2.1.2c| | 5 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Nearside front brake binding |3.7.B.1| | 5 |
| Windscreen washer not working | 5 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 5 |
| Offside Front Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 4 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Nearside Rear coil spring broken |2.4.C.1a| | 4 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Trailer electrical socket insecure |1.9.3a| | 4 |
| Horn not working |1.6.2a| | 4 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 4 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Offside Rear coil spring broken |2.4.C.1a| | 4 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Exhaust has a part missing |7.1.1a| | 4 |
| Rear brake disc excessively pitted |3.5.1h| | 4 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 4 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 4 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 4 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Headlamp not working on main beam |1.7.5a| | 4 |
| 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| | 4 |
| All position lamps not working |1.1.A.3b| | 4 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 4 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 4 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.4.B.1| | 4 |
| 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| | 4 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 4 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |