| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 942 |
| Registration plate lamp issues | 901 |
| Windscreen wiper does not clear the windscreen effectively | 779 |
| Parking brake: efficiency below requirements |3.7.B.7| | 510 |
| Brake pipe excessively corroded | 339 |
| Offside Stop lamp not working |1.2.1b| | 331 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 288 |
| Rear parking brake recording little or no effort | 273 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 266 |
| Nearside Stop lamp not working |1.2.1b| | 250 |
| Brakes imbalanced across an axle | 221 |
| Registration plate issues | 218 |
| Rear brake binding | 156 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 143 |
| Offside Rear Stop lamp not working |1.2.1b| | 127 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 119 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 114 |
| Offside Front coil spring fractured |2.4.C.1a| | 113 |
| Battery insecure |1.9.1| | 113 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 113 |
| Parking brake lever has no reserve travel |3.1.6b| | 109 |
| Nearside Front coil spring fractured |2.4.C.1a| | 108 |
| Nearside Rear Stop lamp not working |1.2.1b| | 94 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 93 |
| Rear brake disc in such a condition that it is seriously weakened | 90 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 87 |
| Anti-lock braking system warning lamp indicates an ABS fault | 87 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 80 |
| Front brake disc in such a condition that it is seriously weakened | 79 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 76 |
| Offside front brake binding |3.7.B.1| | 74 |
| Nearside front brake binding |3.7.B.1| | 74 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 72 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 69 |
| Offside Front coil spring broken |2.4.C.1a| | 67 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 66 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 65 |
| Nearside Front coil spring broken |2.4.C.1a| | 64 |
| Horn not working |1.6.2a| | 60 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 57 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 57 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 55 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 54 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 53 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 53 |
| Offside Front coil spring incomplete |2.4.C.1a| | 48 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 46 |
| Nearside Front front brake binding |3.7.B.1| | 45 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 44 |
| Offside Front front brake binding |3.7.B.1| | 42 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 42 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 41 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 39 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 39 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 38 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 38 |
| Offside Rear fog lamp not working |1.3.2b| | 37 |
| Front brake application uneven | 37 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 36 |
| Mechanical brake component has restricted free movement | 36 |
| Rear fog lamp not working |1.3.2b| | 36 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 35 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 35 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 35 |
| Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 33 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 33 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 32 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 31 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 31 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 30 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 30 |
| Front position lamp|s| not working |1.1.A.3b| | 30 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 30 |
| Windscreen wiper blade insecure | 30 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 29 |
| Rear brake application uneven | 29 |
| 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| | 28 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 28 |
| Windscreen has damage | 26 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 26 |
| Front brake excessively fluctuating | 26 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 25 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 25 |
| Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 25 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 25 |
| 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| | 24 |
| Service brake: efficiency below requirements |3.7.B.7| | 23 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 23 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 22 |
| Rear Mechanical brake component has restricted free movement | 22 |
| Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 22 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 21 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 21 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 21 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 19 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 19 |
| Nearside Headlamp not working on main beam |1.7.5a| | 18 |
| Offside Headlamp not working on main beam |1.7.5a| | 18 |
| Offside Front brake disc excessively pitted |3.5.1h| | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 18 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 18 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 18 |
| Offside Rear coil spring broken |2.4.C.1a| | 18 |
| Emissions not tested |7.0| | 18 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Nearside Front coil spring cracked |2.4.C.1a| | 17 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 17 |
| Offside Headlamp insecure |1.7.3| | 16 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 16 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 16 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 16 |