| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1200 |
| Registration plate lamp issues | 1002 |
| Windscreen wiper does not clear the windscreen effectively | 901 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 453 |
| Brakes imbalanced across an axle | 334 |
| Brake pipe excessively corroded | 328 |
| Parking brake: efficiency below requirements |3.7.B.7| | 306 |
| Offside Stop lamp not working |1.2.1b| | 303 |
| Nearside Stop lamp not working |1.2.1b| | 265 |
| Battery insecure |1.9.1| | 262 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 216 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 208 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 204 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 203 |
| Registration plate issues | 182 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 176 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 175 |
| Rear parking brake recording little or no effort | 174 |
| Parking brake lever has no reserve travel |3.1.6b| | 164 |
| Offside Rear fog lamp not working |1.3.2b| | 159 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 144 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 136 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 134 |
| Horn not working |1.6.2a| | 133 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 133 |
| Offside Headlamp not working on main beam |1.7.5a| | 127 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 123 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 116 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 114 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 112 |
| Nearside Rear Stop lamp not working |1.2.1b| | 111 |
| Offside Rear Stop lamp not working |1.2.1b| | 104 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 104 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 104 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 101 |
| Emissions not tested |7.0| | 96 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 94 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 93 |
| Front brake application uneven | 89 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 88 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 82 |
| Rear fog lamp not working |1.3.2b| | 79 |
| 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| | 75 |
| Windscreen has damage | 72 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 72 |
| Rear fog lamp tell tale not working |1.3.1b| | 72 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 70 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 70 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 69 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 69 |
| Nearside Headlamp not working on main beam |1.7.5a| | 67 |
| 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| | 64 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 62 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 62 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 62 |
| Rear brake binding | 61 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 58 |
| Service brake: efficiency below requirements |3.7.B.7| | 58 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 58 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 56 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 52 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 51 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 50 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 49 |
| Front brake disc in such a condition that it is seriously weakened | 49 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 48 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 48 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 48 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 45 |
| 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| | 44 |
| 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| | 43 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 42 |
| Offside front brake binding |3.7.B.1| | 41 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 39 |
| Front brake excessively fluctuating | 38 |
| Windscreen wiper blade insecure | 38 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 38 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 37 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 36 |
| Nearside front brake binding |3.7.B.1| | 35 |
| 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| | 33 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 33 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 33 |
| Offside Front Direction indicator not working |1.4.A.2c| | 33 |
| 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| | 33 |
| 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| | 32 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 30 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 30 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| Offside Headlamp insecure |1.7.3| | 28 |
| Fuel tank leaking |7.2.3| | 27 |
| Centre Stop lamp not working |1.2.1b| | 27 |
| Stop lamp not working |1.2.1b| | 27 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 27 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 26 |
| Brake hose excessively deteriorated | 25 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 25 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 25 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Rear fog lamp switch faulty |1.3.1a| | 24 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 24 |
| Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 24 |
| Mechanical brake component has restricted free movement | 24 |
| Bonnet cannot be secured in the closed position |8.4.1| | 24 |
| Rear Exhaust system not adequately supported |7.1.1| | 24 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 24 |
| Rear brake application uneven | 24 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 24 |
| Fuel system component leaking |7.2.3| | 23 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 23 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 23 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 22 |
| Rear brake disc in such a condition that it is seriously weakened | 22 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 22 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 22 |
| Nearside Headlamp insecure |1.7.3| | 21 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 21 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 20 |
| Offside Front front brake binding |3.7.B.1| | 20 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 20 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 20 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 20 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 19 |
| Rear Rear fog lamp not working |1.3.2b| | 19 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 19 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 19 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 19 |