| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1082 |
| Windscreen wiper does not clear the windscreen effectively | 826 |
| Horn not working |1.6.2a| | 439 |
| Brakes imbalanced across an axle | 370 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 348 |
| Registration plate lamp issues | 348 |
| Parking brake: efficiency below requirements |3.7.B.7| | 291 |
| Offside Stop lamp not working |1.2.1b| | 278 |
| Nearside Stop lamp not working |1.2.1b| | 247 |
| Rear brake binding | 246 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 240 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 232 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 202 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 195 |
| Brake pipe excessively corroded | 174 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 166 |
| Rear parking brake recording little or no effort | 159 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 153 |
| Registration plate issues | 151 |
| Battery insecure |1.9.1| | 148 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 141 |
| Offside Rear fog lamp not working |1.3.2b| | 132 |
| Parking brake lever has no reserve travel |3.1.6b| | 105 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 104 |
| Nearside Rear Stop lamp not working |1.2.1b| | 104 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 102 |
| Rear fog lamp not working |1.3.2b| | 100 |
| Rear fog lamp tell tale not working |1.3.1b| | 96 |
| Offside Rear Stop lamp not working |1.2.1b| | 94 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 93 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 87 |
| Rear brake disc in such a condition that it is seriously weakened | 82 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 80 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 76 |
| Emissions not tested |7.0| | 69 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 68 |
| Nearside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 67 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 67 |
| Front brake application uneven | 67 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 67 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 65 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 63 |
| Offside front brake binding |3.7.B.1| | 61 |
| Front brake disc in such a condition that it is seriously weakened | 61 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 59 |
| Windscreen has damage | 56 |
| Rear brake application uneven | 49 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 48 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 48 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 48 |
| Rear fog lamp switch faulty |1.3.1a| | 46 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 43 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 43 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 42 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 40 |
| Windscreen wiper blade insecure | 39 |
| Rear Mechanical brake component has restricted free movement | 39 |
| Windscreen washer not working | 38 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 38 |
| Nearside front brake binding |3.7.B.1| | 38 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 37 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| 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| | 37 |
| Anti-lock braking system warning lamp indicates an ABS fault | 37 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 36 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 36 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 36 |
| Offside Front front brake binding |3.7.B.1| | 35 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 35 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 34 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 34 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 33 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 33 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 32 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 32 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 32 |
| Service brake: efficiency below requirements |3.7.B.7| | 31 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 31 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 31 |
| Horn not working (7.7 (a) (ii)) | 30 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 30 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 29 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 29 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 29 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 28 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 27 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 27 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 27 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 27 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 27 |
| Rear Exhaust system not adequately supported |7.1.1| | 27 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 26 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 26 |
| Emissions not tested |7.3.A.1| | 26 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 26 |
| 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| | 26 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Offside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 25 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 25 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 25 |
| Mechanical brake component has restricted free movement | 25 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 24 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 23 |
| 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| | 23 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 23 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 23 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 23 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 22 |
| Front brake excessively fluctuating | 22 |
| Hazard warning switch faulty |1.4.B.1d| | 22 |
| Horn not working |7.7 |a| |ii|| | 22 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 21 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 21 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 21 |
| 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| | 21 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 21 |
| Nearside 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| | 19 |
| 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| | 19 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 18 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 18 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 18 |
| Exhaust system not adequately supported |7.1.1| | 18 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 18 |