| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 998 |
| Headlamp aim out of alignment | 978 |
| Windscreen wiper does not clear the windscreen effectively | 721 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 340 |
| Parking brake: efficiency below requirements |3.7.B.7| | 236 |
| Brakes imbalanced across an axle | 223 |
| Battery insecure |1.9.1| | 221 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 211 |
| Offside Stop lamp not working |1.2.1b| | 210 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 204 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 204 |
| Nearside Stop lamp not working |1.2.1b| | 201 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 170 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 159 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 153 |
| Registration plate issues | 150 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 141 |
| Rear parking brake recording little or no effort | 130 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 124 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 113 |
| Parking brake lever has no reserve travel |3.1.6b| | 113 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 108 |
| Offside Rear fog lamp not working |1.3.2b| | 107 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 107 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 104 |
| Horn not working |1.6.2a| | 94 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 84 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 81 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 81 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 80 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 72 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 71 |
| Brake pipe excessively corroded | 70 |
| Rear brake binding | 70 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 69 |
| Nearside Rear Stop lamp not working |1.2.1b| | 68 |
| Offside Rear Stop lamp not working |1.2.1b| | 67 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 65 |
| 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 Headlamp not working on main beam |1.7.5a| | 63 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 59 |
| Front brake application uneven | 58 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 55 |
| Emissions not tested |7.0| | 53 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 50 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 49 |
| 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| | 48 |
| Windscreen has damage | 48 |
| 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| | 42 |
| Rear fog lamp not working |1.3.2b| | 42 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 42 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 41 |
| Rear fog lamp tell tale not working |1.3.1b| | 40 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 39 |
| Front brake disc in such a condition that it is seriously weakened | 39 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 37 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 37 |
| Nearside Headlamp not working on main beam |1.7.5a| | 37 |
| 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| | 36 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 34 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 33 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 32 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 31 |
| Offside front brake binding |3.7.B.1| | 30 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 30 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 29 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 28 |
| 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| | 28 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Offside Headlamp insecure |1.7.3| | 27 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 27 |
| Anti-lock braking system warning lamp indicates an ABS fault | 27 |
| Windscreen wiper blade insecure | 26 |
| 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| | 26 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 26 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 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 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 23 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 23 |
| Rear Exhaust system not adequately supported |7.1.1| | 23 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Fuel system component leaking |7.2.3| | 23 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 23 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 22 |
| Front brake excessively fluctuating | 22 |
| Nearside Headlamp insecure |1.7.3| | 20 |
| Offside Front Direction indicator not working |1.4.A.2c| | 20 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 19 |
| 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| | 19 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 18 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 18 |
| Offside Front Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 18 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 17 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 17 |
| Nearside front brake binding |3.7.B.1| | 17 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 16 |
| Rear Mechanical brake component has restricted free movement | 16 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Centre Stop lamp not working |1.2.1b| | 16 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 16 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 16 |
| Rear fog lamp switch faulty |1.3.1a| | 15 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 15 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 15 |