| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 949 |
| Brake pipe excessively corroded | 629 |
| Windscreen wiper does not clear the windscreen effectively | 330 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 282 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 250 |
| Registration plate issues | 250 |
| Registration plate lamp issues | 201 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 190 |
| Parking brake: efficiency below requirements |3.7.B.7| | 188 |
| Centre Exhaust system not adequately supported |7.1.1| | 187 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 182 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 173 |
| Offside Stop lamp not working |1.2.1b| | 169 |
| Nearside Stop lamp not working |1.2.1b| | 163 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 138 |
| Rear parking brake recording little or no effort | 136 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 136 |
| Anti-lock braking system warning lamp indicates an ABS fault | 134 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 133 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 129 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 121 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 115 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 111 |
| Front brake disc in such a condition that it is seriously weakened | 107 |
| Exhaust system not adequately supported |7.1.1| | 103 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 91 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 87 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 85 |
| Brakes imbalanced across an axle | 84 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 82 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 81 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 76 |
| Brake hose excessively deteriorated | 75 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 74 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 74 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 72 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 71 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 66 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 64 |
| Nearside Rear Stop lamp not working |1.2.1b| | 60 |
| Offside Rear fog lamp not working |1.3.2b| | 59 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 56 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 56 |
| Offside Rear Stop lamp not working |1.2.1b| | 56 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 54 |
| Offside Rear coil spring broken |2.4.C.1a| | 53 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 50 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 45 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 44 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 44 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 44 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 42 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 39 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 39 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 38 |
| Offside Front coil spring broken |2.4.C.1a| | 37 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 36 |
| Nearside Rear coil spring broken |2.4.C.1a| | 36 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 35 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 34 |
| Rear Exhaust has a part missing |7.1.1a| | 33 |
| Rear fog lamp not working |1.3.2b| | 33 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 33 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 32 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 32 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 32 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 32 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 31 |
| Offside Rear coil spring fractured |2.4.C.1a| | 30 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 30 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 30 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 29 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 29 |
| Windscreen has damage | 29 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 29 |
| Offside Steering rack gaiter split |2.2.D.2d| | 27 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 26 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 26 |
| Rear Exhaust system not adequately supported |7.1.1| | 26 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 26 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 26 |
| Rear brake binding | 25 |
| Brake hose damaged | 25 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 25 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 25 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 23 |
| Centre Exhaust mounting missing |7.1.1b| | 23 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 23 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 23 |
| Emissions not tested |7.0| | 23 |
| Battery insecure |1.9.1| | 23 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 22 |
| 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| | 22 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 22 |
| Offside Front coil spring incomplete |2.4.C.1a| | 22 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Stop lamp not working |1.2.1b| | 19 |
| Front brake application uneven | 19 |
| Nearside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 19 |
| 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| | 18 |
| Centre Rear Statutory seat belt missing |5.1.1| | 18 |
| Front position lamp|s| not working |1.1.A.3b| | 18 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Service brake: efficiency below requirements |3.7.B.7| | 18 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 18 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 18 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 18 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 17 |
| Front brake excessively fluctuating | 17 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 17 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 17 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 17 |
| Offside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 17 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 16 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 16 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 16 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 16 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 16 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 16 |
| 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| | 16 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 16 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 16 |
| Centre Stop lamp not working |1.2.1b| | 15 |
| Offside 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 Rear Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Offside Front Position lamp not working |4.2.1 |a|| | 15 |