| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 3921 |
| Registration plate lamp issues | 3636 |
| Headlamp aim out of alignment | 2823 |
| Brake pipe excessively corroded | 1122 |
| Brakes imbalanced across an axle | 1051 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 938 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 808 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 627 |
| Centre Stop lamp not working |1.2.1b| | 545 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 526 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 510 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 499 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 421 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 385 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 377 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 371 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 342 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 321 |
| Nearside Stop lamp not working |1.2.1b| | 321 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 302 |
| Windscreen has damage | 287 |
| Front brake disc in such a condition that it is seriously weakened | 278 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 272 |
| Registration plate issues | 270 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 270 |
| Horn not working |1.6.2a| | 259 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 244 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 239 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 238 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 230 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 227 |
| Rear Exhaust system not adequately supported |7.1.1| | 223 |
| Offside Stop lamp not working |1.2.1b| | 204 |
| Parking brake: efficiency below requirements |3.7.B.7| | 196 |
| Anti-lock braking system warning lamp indicates an ABS fault | 186 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 170 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 164 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 163 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 160 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 160 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 156 |
| Rear brake application uneven | 154 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 152 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 152 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 147 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 147 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 146 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 140 |
| Exhaust system not adequately supported |7.1.1| | 139 |
| Indicator switch faulty |1.4.A.1| | 139 |
| Service brake: efficiency below requirements |3.7.B.7| | 139 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 135 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 134 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 133 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 130 |
| Offside front brake binding |3.7.B.1| | 127 |
| Battery insecure |1.9.1| | 126 |
| Brake load sensing valve seized |3.6.E.3| | 126 |
| Front brake application uneven | 124 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 124 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 123 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 123 |
| Brake hose excessively deteriorated | 121 |
| Windscreen wiper blade insecure | 121 |
| Stop lamp not working |1.2.1b| | 119 |
| Rear parking brake recording little or no effort | 119 |
| Windscreen washer not working | 119 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 117 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 116 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 113 |
| Emissions not tested |7.0| | 112 |
| Nearside Rear Stop lamp not working |1.2.1b| | 109 |
| Offside Front Position lamp not working |4.2.1 |a|| | 109 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 108 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 107 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 105 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 98 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 97 |
| 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| | 95 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 95 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 94 |
| Nearside Headlamp insecure |1.7.3| | 92 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 91 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 90 |
| Nearside front brake binding |3.7.B.1| | 90 |
| Centre Rear Stop lamp not working |1.2.1b| | 88 |
| 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| | 87 |
| Offside Side repeater not working |1.4.A.2c| | 87 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 87 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 86 |
| Brake load sensing valve linkage seized |3.6.E.3| | 85 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 85 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 83 |
| Fuel system component leaking |7.2.3| | 82 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 82 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 81 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 81 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 81 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 80 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 80 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 77 |
| Horn not working (7.7 (a) (ii)) | 77 |
| Offside Front coil spring broken |2.4.C.1a| | 76 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 75 |
| Rear brake binding | 74 |
| Upper Stop lamp not working |1.2.1b| | 74 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 74 |
| Offside Rear Shock absorbers has a serious fluid leak | 74 |
| Offside Rear Stop lamp not working |1.2.1b| | 73 |
| Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 73 |
| Offside Headlamp insecure |1.7.3| | 72 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 72 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 71 |
| Offside Rear fog lamp not working |1.3.2b| | 71 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 71 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 70 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 68 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 68 |
| Offside Front front brake binding |3.7.B.1| | 68 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 67 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 66 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 65 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 64 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 64 |
| Front brake excessively fluctuating | 63 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 63 |
| Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 63 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 62 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 62 |
| Central Stop lamp not working |1.2.1b| | 61 |
| Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 61 |
| Rear fog lamp not working |1.3.2b| | 61 |
| Horn not working |7.7 |a| |ii|| | 61 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 61 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 60 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 60 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 59 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 58 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 58 |