| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 459 |
| Windscreen wiper does not clear the windscreen effectively | 253 |
| Brake pipe excessively corroded | 252 |
| Headlamp aim out of alignment | 200 |
| Offside Stop lamp not working |1.2.1b| | 103 |
| Nearside Stop lamp not working |1.2.1b| | 98 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 84 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 82 |
| Brakes imbalanced across an axle | 80 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 78 |
| Registration plate issues | 76 |
| Parking brake lever has no reserve travel |3.1.6b| | 76 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 75 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 68 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 68 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 65 |
| Anti-lock braking system warning lamp indicates an ABS fault | 60 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 58 |
| Parking brake: efficiency below requirements |3.7.B.7| | 58 |
| Offside Rear Stop lamp not working |1.2.1b| | 57 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 54 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 53 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 46 |
| Nearside Rear Stop lamp not working |1.2.1b| | 44 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 35 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 32 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 32 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 31 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 31 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 31 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 30 |
| Rear Exhaust system not adequately supported |7.1.1| | 27 |
| Rear parking brake recording little or no effort | 26 |
| Front brake application uneven | 26 |
| Windscreen has damage | 26 |
| Nearside Rear Suspension arm corroded and seriously weakened |2.4.G.1| | 24 |
| Offside Rear Suspension arm corroded and seriously weakened |2.4.G.1| | 24 |
| Offside Rear fog lamp not working |1.3.2b| | 24 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 23 |
| Offside front brake binding |3.7.B.1| | 23 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 22 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 22 |
| Nearside Headlamp not working on main beam |1.7.5a| | 22 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 21 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 20 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Rear brake binding | 18 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Offside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 16 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 15 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 15 |
| Offside Headlamp not working on main beam |1.7.5a| | 15 |
| Rear brake disc in such a condition that it is seriously weakened | 15 |
| Horn not working |1.6.2a| | 14 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 14 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 14 |
| Front brake disc in such a condition that it is seriously weakened | 13 |
| Fuel system component leaking |7.2.3| | 13 |
| Battery insecure |1.9.1| | 12 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 12 |
| Stop lamp not working |1.2.1b| | 12 |
| Windscreen wiper blade insecure | 12 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 11 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 11 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Rear brake application uneven | 11 |
| Nearside Rear Trailing arm corroded and seriously weakened |2.4.G.1| | 10 |
| Brake hose has insufficient room to move | 10 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 10 |
| Emissions not tested |7.0| | 10 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 10 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 10 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 10 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 10 |
| Offside Rear Trailing arm corroded and seriously weakened |2.4.G.1| | 9 |
| Offside Front front brake binding |3.7.B.1| | 9 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 9 |
| Nearside Front Brake hose twisted |3.6.B.4c| | 9 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 9 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 9 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 9 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 9 |
| 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| | 8 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 8 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 8 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 8 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 8 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 7 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 7 |
| Nearside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 7 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 7 |
| Offside Front Upper Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 7 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Centre Stop lamp not working |1.2.1b| | 7 |
| Offside Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Rear fog lamp switch faulty |1.3.1a| | 6 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 6 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 6 |
| Rear fog lamp switch missing |1.3.1a| | 6 |
| Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 6 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 6 |
| Rear fog lamp tell tale not working |1.3.1b| | 6 |