| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1208 |
| Windscreen wiper does not clear the windscreen effectively | 1007 |
| Brake pipe excessively corroded | 874 |
| Registration plate lamp issues | 562 |
| Offside Stop lamp not working |1.2.1b| | 422 |
| Brakes imbalanced across an axle | 407 |
| Parking brake: efficiency below requirements |3.7.B.7| | 386 |
| Nearside Stop lamp not working |1.2.1b| | 368 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 247 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 235 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 225 |
| Registration plate issues | 194 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 174 |
| Rear parking brake recording little or no effort | 173 |
| Offside Rear Stop lamp not working |1.2.1b| | 172 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 166 |
| Offside Rear fog lamp not working |1.3.2b| | 159 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 153 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 152 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 150 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 148 |
| Battery insecure |1.9.1| | 141 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 141 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 126 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 124 |
| Nearside Rear Stop lamp not working |1.2.1b| | 120 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 105 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 97 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 97 |
| Front brake application uneven | 97 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 95 |
| 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| | 95 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 93 |
| Front brake disc in such a condition that it is seriously weakened | 93 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 90 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 90 |
| Offside front brake binding |3.7.B.1| | 89 |
| 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| | 89 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 88 |
| Brake hose excessively deteriorated | 75 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 73 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 70 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 66 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 63 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 62 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 59 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 59 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 59 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 56 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 55 |
| Nearside front brake binding |3.7.B.1| | 54 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 53 |
| 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| | 53 |
| Parking brake lever has no reserve travel |3.1.6b| | 52 |
| 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| | 51 |
| Anti-lock braking system warning lamp indicates an ABS fault | 51 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 51 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 50 |
| Emissions not tested |7.0| | 50 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 49 |
| Offside Front front brake binding |3.7.B.1| | 47 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 47 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 46 |
| 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| | 45 |
| 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| | 43 |
| Rear brake binding | 42 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 42 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 41 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 40 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 40 |
| Power steering fluid level below minimum |2.3.1| | 40 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 37 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 35 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 34 |
| Nearside Front front brake binding |3.7.B.1| | 34 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 33 |
| Windscreen has damage | 32 |
| Windscreen wiper blade insecure | 32 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 32 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 32 |
| Offside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 32 |
| Fuel tank leaking |7.2.3| | 31 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 30 |
| Nearside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 30 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 28 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 28 |
| Mechanical brake component has restricted free movement | 28 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 28 |
| Bonnet cannot be secured in the closed position |8.4.1| | 27 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 27 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 26 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 26 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 25 |
| 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| | 24 |
| Rear fog lamp tell tale not working |1.3.1b| | 24 |
| Horn not working |1.6.2a| | 24 |
| Offside Headlamp not working on main beam |1.7.5a| | 24 |
| Offside Front Anti-lock braking system component excessively damaged |3.4.2| | 24 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 24 |
| Driver`s seat insecure |6.2.A.1| | 24 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 23 |
| Fuel system component leaking |7.2.3| | 23 |
| Front brake excessively fluctuating | 23 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 22 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 22 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 22 |
| Service brake: efficiency below requirements |3.7.B.7| | 22 |