| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 246 |
| Headlamp aim out of alignment | 169 |
| Windscreen wiper does not clear the windscreen effectively | 164 |
| Registration plate lamp issues | 103 |
| Parking brake lever has no reserve travel |3.1.6b| | 40 |
| Front brake disc in such a condition that it is seriously weakened | 39 |
| Brakes imbalanced across an axle | 37 |
| Rear brake binding | 36 |
| Registration plate issues | 35 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 32 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 31 |
| Rear brake disc in such a condition that it is seriously weakened | 30 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 29 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 28 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 28 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 24 |
| Anti-lock braking system warning lamp indicates an ABS fault | 22 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 20 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 18 |
| Nearside Stop lamp not working |1.2.1b| | 15 |
| Offside Stop lamp not working |1.2.1b| | 14 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 14 |
| Nearside Front Sub-frame corroded and seriously weakened |2.4.G.1| | 13 |
| Offside Rear fog lamp not working |1.3.2b| | 13 |
| Rear brake application uneven | 13 |
| Parking brake: efficiency below requirements |3.7.B.7| | 12 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Service brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 11 |
| Battery insecure |1.9.1| | 11 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Headlamp not working on main beam |1.7.5a| | 10 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 10 |
| Nearside Rear Stop lamp not working |1.2.1b| | 10 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 10 |
| Rear Mechanical brake component has restricted free movement | 9 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 9 |
| Front brake application uneven | 9 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 8 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 8 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| 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| | 7 |
| 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| | 7 |
| Offside Rear Stop lamp not working |1.2.1b| | 7 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 7 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 7 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 7 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 7 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 6 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 6 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 6 |
| Windscreen wiper blade insecure | 6 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 6 |
| Windscreen has damage | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Offside Front Anti-lock braking system component excessively damaged |3.4.2| | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 5 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 5 |
| Emissions not tested |7.0| | 5 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Front Sub-frame corroded and seriously weakened |2.4.G.1| | 5 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Rear parking brake recording little or no effort | 4 |
| Rear fog lamp tell tale not working |1.3.1b| | 4 |
| Front Exhaust system not adequately supported |7.1.1| | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 4 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 4 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside front brake juddering severely |3.7.A.2b| | 4 |
| Nearside Rear brake disc excessively scored |3.5.1h| | 4 |
| Front brake disc excessively pitted |3.5.1h| | 4 |
| 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| | 4 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 4 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 4 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 4 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Brake hose excessively deteriorated | 4 |
| Offside Rear Braking system leaking |3.6.A.1| | 4 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 3 |
| Rear fog lamp not working |1.3.2b| | 3 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 3 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 3 |
| Offside Front brake disc excessively pitted |3.5.1h| | 3 |
| Rear brake disc excessively pitted |3.5.1h| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Headlamp not working on main beam |1.7.5a| | 3 |
| Hazard warning switch faulty |1.4.B.1d| | 3 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded outer sill |2.4.A.3| | 3 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 3 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 3 |
| Front Power steering pipe|s| or hose|s| leaking |2.3.3b| | 3 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Centre Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 3 |
| Nearside Front Anti-lock braking system component excessively damaged |3.4.2| | 3 |
| Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1| | 3 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Bonnet retaining device ineffective |8.4.2| | 3 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 3 |
| Power steering component|s| leaking |2.3.3b| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Offside front brake binding |3.7.B.1| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Brake performance not tested |3.7.A.1| | 3 |
| Brake hose damaged | 3 |
| Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |