| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 6 |
| Windscreen wiper does not clear the windscreen effectively | 5 |
| Service brake: efficiency below requirements |3.7.B.7| | 5 |
| Registration plate lamp issues | 4 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 3 |
| Horn not working |1.6.2a| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Headlamp aim out of alignment | 3 |
| Mechanical brake component has restricted free movement | 3 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Brakes imbalanced across an axle | 2 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 2 |
| Windscreen washer not working | 2 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 2 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Brake pedal spongy |3.3.B.1b| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Rear Rear fog lamp not working |1.3.2b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| 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| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| 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| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Offside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Registration plate issues | 1 |
| Offside Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Exhaust mounting missing |7.1.1b| | 1 |
| Brake load sensing valve linkage seized |3.6.E.3| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| 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| | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 1 |
| Offside Front Direction indicators not working |1.4.A.2c| | 1 |
| Offside Headlamp aim does not move downwards when dipped |British American headlamp| |1.8.C.4| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Rear Rear reflector excessively damaged so that its function is impaired |1.5.1c| | 1 |
| Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b| | 1 |
| Centre Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Rear fog lamp switch faulty |1.3.1a| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Fuel system component leaking |7.2.3| | 1 |
| Fuel pipe leaking |7.2.3| | 1 |
| Braking system leaking front to rear brake pipe |3.6.A.1| | 1 |
| Rear brake binding | 1 |
| Nearside Headlamp insecure |1.7.3| | 1 |
| Headlamp not working on main beam |1.7.5a| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Offside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 1 |
| Nearside Front Brake pipe leaking on a hydraulic braking system |1.1.11 |b| |ii|| | 1 |
| Offside Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i|| | 1 |
| Nearside Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Rear Suspension component mounting prescribed area excessively damaged significantly reducing structural strength (5.3.6 (a) (i)) | 1 |
| Offside Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 1 |
| Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Side repeater obscured more than 50% |1.4.A.2d| | 1 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |