| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 288 |
| Windscreen wiper does not clear the windscreen effectively | 139 |
| Headlamp aim out of alignment | 137 |
| Brake pipe excessively corroded | 131 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 65 |
| Brakes imbalanced across an axle | 57 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 53 |
| Registration plate issues | 52 |
| Nearside Stop lamp not working |1.2.1b| | 31 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 28 |
| Centre Stop lamp not working |1.2.1b| | 27 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 25 |
| Front Exhaust system not adequately supported |7.1.1| | 25 |
| Offside Stop lamp not working |1.2.1b| | 24 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 23 |
| Offside Rear Stop lamp not working |1.2.1b| | 21 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Rear fog lamp not working |1.3.2b| | 13 |
| Front brake disc in such a condition that it is seriously weakened | 13 |
| Nearside Rear Stop lamp not working |1.2.1b| | 12 |
| Anti-lock braking system warning lamp indicates an ABS fault | 12 |
| Front brake application uneven | 12 |
| Service brake: efficiency below requirements |3.7.B.7| | 12 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Windscreen wiper blade insecure | 11 |
| Brake hose excessively deteriorated | 11 |
| Exhaust system not adequately supported |7.1.1| | 10 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 9 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Centre Rear Stop lamp not working |1.2.1b| | 8 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 8 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 7 |
| Offside Headlamp insecure |1.7.3| | 7 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 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 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Parking brake: efficiency below requirements |3.7.B.7| | 5 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 5 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 5 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Centre Front Exhaust system not adequately supported |7.1.1| | 5 |
| Windscreen has damage | 5 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 4 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| Horn emits two or more alternating tones |1.6.2d| | 4 |
| Front position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Nearside Front Headlamp insecure |1.7.3| | 4 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Offside Front coil spring fractured |2.4.C.1a| | 4 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 4 |
| Nearside Headlamp insecure |1.7.3| | 4 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 4 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 4 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Offside Front coil spring broken |2.4.C.1a| | 3 |
| Offside Front Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Offside Front Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 3 |
| Rear brake application uneven | 3 |
| Nearside Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 3 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| 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| | 3 |
| Battery insecure |1.9.1| | 3 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 3 |
| Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Offside Front brake disc excessively pitted |3.5.1h| | 3 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 3 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 3 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Centre Upper Stop lamp not working |1.2.1b| | 3 |
| Nearside Front All position lamps not working |1.1.A.3b| | 3 |
| Offside Front All position lamps not working |1.1.A.3b| | 3 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 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 |
| Front Exhaust mounting missing |7.1.1b| | 3 |
| 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| | 3 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 3 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 3 |