| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 613 |
| Registration plate lamp issues | 378 |
| Windscreen wiper does not clear the windscreen effectively | 358 |
| Parking brake: efficiency below requirements |3.7.B.7| | 339 |
| Brake pipe excessively corroded | 302 |
| Anti-lock braking system warning lamp indicates an ABS fault | 222 |
| Brake hose excessively deteriorated | 213 |
| Rear parking brake recording little or no effort | 205 |
| Brakes imbalanced across an axle | 182 |
| Registration plate issues | 163 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 140 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 140 |
| Parking brake lever has no reserve travel |3.1.6b| | 133 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 126 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 118 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 113 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 112 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 107 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 106 |
| Nearside Stop lamp not working |1.2.1b| | 106 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 105 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 96 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 96 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 89 |
| Offside Stop lamp not working |1.2.1b| | 88 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 84 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 77 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 74 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 72 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 72 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 71 |
| Hazard warning switch faulty |1.4.B.1d| | 71 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 70 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 61 |
| Rear Exhaust system not adequately supported |7.1.1| | 60 |
| Fuel system component insecure |7.2.1| | 60 |
| Nearside Headlamp not working on main beam |1.7.5a| | 57 |
| Emissions not tested |7.0| | 56 |
| Offside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 55 |
| Service brake: efficiency below requirements |3.7.B.7| | 55 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 55 |
| Exhaust system not adequately supported |7.1.1| | 52 |
| Front brake application uneven | 49 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 48 |
| Nearside Rear Stop lamp not working |1.2.1b| | 46 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 45 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 44 |
| Centre Exhaust system not adequately supported |7.1.1| | 42 |
| Offside Rear fog lamp not working |1.3.2b| | 41 |
| Windscreen has damage | 38 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 38 |
| Front brake disc in such a condition that it is seriously weakened | 38 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 38 |
| Rear brake disc in such a condition that it is seriously weakened | 38 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 37 |
| Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 36 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 36 |
| Front Exhaust system not adequately supported |7.1.1| | 36 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 34 |
| Offside Headlamp not working on main beam |1.7.5a| | 33 |
| Offside Rear Stop lamp not working |1.2.1b| | 33 |
| Hazard warning switch missing |1.4.B.1d| | 30 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 30 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 29 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 29 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 28 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 27 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 26 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 26 |
| Rear brake binding | 26 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 26 |
| Offside Front Suspension arm attachment bracket/mounting fractured |2.4.G.1| | 25 |
| Offside Front Suspension arm attachment bracket/mounting cracked |2.4.G.1| | 24 |
| Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 24 |
| Horn not working |1.6.2a| | 23 |
| Hazard warning lamps inoperative |1.4.B.1b| | 23 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 23 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 23 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 23 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 23 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 22 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 22 |
| Nearside Front Suspension arm attachment bracket/mounting fractured |2.4.G.1| | 22 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 21 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 21 |
| Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 21 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Battery insecure |1.9.1| | 20 |
| Offside front brake binding |3.7.B.1| | 20 |
| Centre Stop lamp not working |1.2.1b| | 19 |
| 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| | 19 |
| Offside Side repeater not working |1.4.A.2c| | 19 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 19 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 18 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 18 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 18 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 18 |
| Brake hose damaged | 17 |
| Offside Front front brake binding |3.7.B.1| | 17 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 17 |
| Windscreen wiper blade insecure | 17 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 16 |
| Nearside Front Suspension arm attachment bracket/mounting cracked |2.4.G.1| | 16 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 16 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 16 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 16 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 16 |
| Brake hose has insufficient room to move | 15 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 15 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 15 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 15 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 15 |
| 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| | 15 |
| Offside Rear Fuel system component insecure |7.2.1| | 15 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 15 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 15 |
| Nearside Side repeater not working |1.4.A.2c| | 14 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 14 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 14 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 14 |
| Centre Stop lamp has less than 50% of the light sources illuminating |1.2.1b| | 14 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 14 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 13 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 13 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 13 |
| 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| | 13 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 12 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 12 |
| Nearside front brake binding |3.7.B.1| | 12 |
| Offside Steering rack gaiter split |2.2.D.2d| | 12 |
| Hazard warning switch insecure |1.4.B.1d| | 12 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 12 |
| Rear fog lamp not working |1.3.2b| | 12 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| 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| | 11 |
| 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| | 11 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 11 |
| Front Exhaust mounting missing |7.1.1b| | 11 |
| Exhaust mounting missing |7.1.1b| | 11 |
| Fuel hose insecure |7.2.1| | 11 |
| Offside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Rear fog lamp tell tale not working |1.3.1b| | 11 |
| Stop lamp not working |1.2.1b| | 10 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 10 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 10 |
| Front Headlamp not working on main beam |1.7.5a| | 10 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| 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| | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 10 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 10 |
| Headlamp switch faulty |1.7.1| | 10 |