| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1424 |
| Registration plate lamp issues | 885 |
| Windscreen wiper does not clear the windscreen effectively | 805 |
| Parking brake: efficiency below requirements |3.7.B.7| | 545 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 526 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 507 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 451 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 410 |
| Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 358 |
| Rear parking brake recording little or no effort | 306 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 292 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 284 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 274 |
| Registration plate issues | 185 |
| Brake pipe excessively corroded | 172 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 163 |
| Brakes imbalanced across an axle | 163 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 146 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 145 |
| Front brake disc in such a condition that it is seriously weakened | 139 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 138 |
| Offside Stop lamp not working |1.2.1b| | 138 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 130 |
| Centre Exhaust system not adequately supported |7.1.1| | 122 |
| Nearside Stop lamp not working |1.2.1b| | 116 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 116 |
| Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 111 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 107 |
| Horn not working |1.6.2a| | 105 |
| Rear brake binding | 100 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 95 |
| Parking brake lever has no reserve travel |3.1.6b| | 89 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 89 |
| Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 85 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 83 |
| Nearside Headlamp not working on main beam |1.7.5a| | 80 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 80 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 79 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 77 |
| Exhaust system not adequately supported |7.1.1| | 74 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 74 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 71 |
| Rear Exhaust system not adequately supported |7.1.1| | 64 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 62 |
| Anti-lock braking system warning lamp indicates an ABS fault | 62 |
| Windscreen has damage | 58 |
| Offside Headlamp not working on main beam |1.7.5a| | 57 |
| Offside Rear fog lamp not working |1.3.2b| | 57 |
| Rear brake disc in such a condition that it is seriously weakened | 57 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 56 |
| Driver`s seat insecure |6.2.A.1| | 56 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 56 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 53 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 52 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 51 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 50 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 50 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 50 |
| Offside Rear Stop lamp not working |1.2.1b| | 48 |
| Nearside Rear Stop lamp not working |1.2.1b| | 47 |
| Front position lamp|s| not working |1.1.A.3b| | 47 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 42 |
| Windscreen wiper blade insecure | 42 |
| Nearside Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 42 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 42 |
| 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| | 41 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 40 |
| Front brake application uneven | 40 |
| Fuel system component leaking |7.2.3| | 39 |
| Emissions not tested |7.0| | 39 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 38 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 37 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 37 |
| 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| | 36 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 35 |
| Brake hose excessively deteriorated | 35 |
| Service brake: efficiency below requirements |3.7.B.7| | 35 |
| Rear brake application uneven | 34 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 34 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 34 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 34 |
| Offside Inner Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 34 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 33 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 33 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 33 |
| Nearside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 33 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 33 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 32 |
| Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 32 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 31 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| Rear Brake cable insecure | 29 |
| Rear fog lamp not working |1.3.2b| | 28 |
| Battery insecure |1.9.1| | 28 |
| Offside Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 28 |
| 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| | 28 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 27 |
| 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| | 26 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 25 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 25 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 24 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 23 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 23 |
| Nearside Front Upper Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 23 |
| Driver`s airbag obviously defective |5.4.1| | 22 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 22 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 22 |
| Centre Rear Exhaust system not adequately supported |7.1.1| | 22 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 21 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 21 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 21 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 21 |
| Offside Brake cable has wires broken and is significantly weakened |3.5.1b| | 21 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 21 |
| Nearside Headlamp insecure |1.7.3| | 21 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 20 |
| Offside Front brake disc excessively pitted |3.5.1h| | 20 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Offside Front Upper Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 20 |
| Offside Front Upper Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 20 |
| 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| | 20 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 19 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 19 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 19 |
| Rear fog lamp switch faulty |1.3.1a| | 19 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 19 |