| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 318 |
| Headlamp aim out of alignment | 206 |
| Registration plate lamp issues | 173 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 151 |
| Brake pipe excessively corroded | 102 |
| Parking brake: efficiency below requirements |3.7.B.7| | 99 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 97 |
| Brakes imbalanced across an axle | 84 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 77 |
| Registration plate issues | 72 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 72 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 71 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 66 |
| Offside Rear coil spring fractured |2.4.C.1a| | 63 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 58 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 55 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 53 |
| Front brake disc in such a condition that it is seriously weakened | 53 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 51 |
| Nearside Stop lamp not working |1.2.1b| | 46 |
| Brake hose excessively deteriorated | 45 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 43 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 39 |
| Offside Stop lamp not working |1.2.1b| | 38 |
| Rear parking brake recording little or no effort | 37 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 35 |
| Emissions not tested |7.0| | 33 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 32 |
| Battery insecure |1.9.1| | 28 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 27 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 26 |
| Centre Rear Statutory seat belt missing |5.1.1| | 26 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 25 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 25 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 25 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 24 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 23 |
| Offside Front coil spring fractured |2.4.C.1a| | 23 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 22 |
| Offside Front brake disc excessively pitted |3.5.1h| | 21 |
| Windscreen has damage | 21 |
| Offside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 21 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 21 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Nearside Rear Stop lamp not working |1.2.1b| | 20 |
| Rear brake binding | 20 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 19 |
| Offside Rear Stop lamp not working |1.2.1b| | 19 |
| Front brake application uneven | 19 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 18 |
| Nearside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 18 |
| Offside front brake binding |3.7.B.1| | 18 |
| Offside Front coil spring incomplete |2.4.C.1a| | 17 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 17 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 16 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Offside Rear coil spring broken |2.4.C.1a| | 16 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 16 |
| Steering column universal joint has excessive play |2.1.5| | 15 |
| Service brake: efficiency below requirements |3.7.B.7| | 15 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 14 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 14 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 14 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 13 |
| Rear brake application uneven | 13 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 13 |
| Offside Headlamp not working on main beam |1.7.5a| | 13 |
| Nearside front brake binding |3.7.B.1| | 13 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 12 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 12 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 12 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Nearside Headlamp not working on main beam |1.7.5a| | 12 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 12 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 12 |
| Front brake disc excessively pitted |3.5.1h| | 11 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 11 |
| Power steering component|s| leaking |2.3.3b| | 11 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 11 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 11 |
| Lower Steering column universal joint has excessive play |2.1.5| | 11 |
| Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 11 |
| Offside Rear coil spring cracked |2.4.C.1a| | 10 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 10 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 10 |
| Windscreen wiper blade insecure | 10 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 10 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Mechanical brake component has restricted free movement | 10 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 10 |
| Offside Front coil spring broken |2.4.C.1a| | 10 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Nearside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 9 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 9 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 9 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 9 |
| Offside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 9 |
| Offside Outer Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 9 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 9 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 9 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 9 |
| Exhaust system not adequately supported |7.1.1| | 9 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 8 |
| Offside Front constant velocity joint is insecure |2.5.C.1b| | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Offside Rear Braking system leaking |3.6.A.1| | 8 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 8 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 8 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Front position lamp|s| not working |1.1.A.3b| | 8 |
| Fuel system component insecure |7.2.1| | 8 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Offside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 8 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Offside Front front brake binding |3.7.B.1| | 7 |
| Nearside Front coil spring fractured |2.4.C.1a| | 7 |
| Nearside Front brake disc excessively scored |3.5.1h| | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 7 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 7 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 7 |
| 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| | 7 |
| Offside Rear Wheel bolt|s| missing |4.2.A.1e| | 7 |
| Fuel tank leaking |7.2.3| | 6 |
| Offside Ball joint has excessive play |2.2.B.1f| | 6 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 6 |
| Hazard warning switch faulty |1.4.B.1d| | 6 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Nearside Front Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Nearside Front Front constant velocity joint is insecure |2.5.C.1b| | 6 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Nearside Front front brake binding |3.7.B.1| | 6 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Brake hose damaged | 6 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 6 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 6 |
| Nearside Rear Braking system leaking |3.6.A.1| | 5 |
| Front Exhaust has part of the system excessively deteriorated |7.1.1a| | 5 |
| Centre Rear Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Offside Front coil spring cracked |2.4.C.1a| | 5 |
| 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| | 5 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 5 |
| Offside Front Front constant velocity joint is insecure |2.5.C.1b| | 5 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Offside Rear wheel cylinder leaking |3.6.A.1| | 5 |
| Nearside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 5 |
| Offside Front brake disc excessively scored |3.5.1h| | 5 |
| Nearside front brake juddering severely |3.7.A.2b| | 5 |
| 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| | 5 |
| Offside Outer Front constant velocity joint is insecure |2.5.C.1b| | 5 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Rear Statutory seat belt missing |5.1.1| | 5 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 5 |
| Nearside Front coil spring broken |2.4.C.1a| | 5 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 5 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Fuel system component leaking |7.2.3| | 5 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 5 |