| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 5383 |
| Windscreen wiper does not clear the windscreen effectively | 4352 |
| Headlamp aim out of alignment | 4210 |
| Brakes imbalanced across an axle | 1533 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1355 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1195 |
| Brake pipe excessively corroded | 1088 |
| Centre Stop lamp not working |1.2.1b| | 950 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 697 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 633 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 601 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 596 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 561 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 550 |
| Front brake disc in such a condition that it is seriously weakened | 547 |
| Registration plate issues | 496 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 467 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 438 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 437 |
| Parking brake: efficiency below requirements |3.7.B.7| | 434 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 403 |
| Windscreen has damage | 402 |
| Nearside Stop lamp not working |1.2.1b| | 398 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 368 |
| Rear parking brake recording little or no effort | 364 |
| Brake load sensing valve linkage seized |3.6.E.3| | 358 |
| Rear Exhaust system not adequately supported |7.1.1| | 344 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 344 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 331 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 328 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 326 |
| Brake load sensing valve seized |3.6.E.3| | 313 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 312 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 308 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 306 |
| Rear brake application uneven | 306 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 301 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 300 |
| Horn not working |1.6.2a| | 297 |
| Battery insecure |1.9.1| | 297 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 294 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 292 |
| Offside Front coil spring broken |2.4.C.1a| | 291 |
| Offside Stop lamp not working |1.2.1b| | 289 |
| Service brake: efficiency below requirements |3.7.B.7| | 287 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 286 |
| Offside front brake binding |3.7.B.1| | 276 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 271 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 268 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 259 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 250 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 249 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 249 |
| Nearside Headlamp insecure |1.7.3| | 245 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 243 |
| Stop lamp not working |1.2.1b| | 226 |
| Rear brake binding | 224 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 219 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 217 |
| Front brake application uneven | 214 |
| Offside Headlamp insecure |1.7.3| | 211 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 210 |
| Emissions not tested |7.0| | 208 |
| Exhaust system not adequately supported |7.1.1| | 193 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 184 |
| Indicator switch faulty |1.4.A.1| | 177 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 176 |
| Windscreen wiper blade insecure | 175 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 174 |
| 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| | 171 |
| Fuel system component leaking |7.2.3| | 169 |
| Centre Rear Stop lamp not working |1.2.1b| | 164 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 164 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 162 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 160 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 154 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 153 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 152 |
| Offside Front front brake binding |3.7.B.1| | 152 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 152 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 151 |
| Nearside Front coil spring broken |2.4.C.1a| | 146 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 140 |
| Nearside Rear Stop lamp not working |1.2.1b| | 138 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 137 |
| Offside Rear fog lamp not working |1.3.2b| | 126 |
| Nearside front brake binding |3.7.B.1| | 126 |
| Offside Side repeater not working |1.4.A.2c| | 124 |
| Upper Stop lamp not working |1.2.1b| | 123 |
| Nearside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 123 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 123 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 123 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 121 |
| Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 121 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 120 |
| Offside Rear Stop lamp not working |1.2.1b| | 118 |
| Centre Upper Stop lamp not working |1.2.1b| | 117 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 116 |
| Brake hose excessively deteriorated | 116 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 115 |
| Nearside Side repeater not working |1.4.A.2c| | 114 |
| Front position lamp|s| not working |1.1.A.3b| | 112 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 111 |
| 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| | 110 |
| Windscreen washer not working | 110 |
| Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 108 |
| 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| | 107 |
| Rear fog lamp tell tale not working |1.3.1b| | 107 |
| Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 107 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 106 |
| Nearside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 106 |
| Rear Brake load sensing valve seized |3.6.E.3| | 105 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 105 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 105 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 104 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 103 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 103 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 98 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 98 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 97 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 97 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 97 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 96 |
| 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| | 96 |
| 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| | 95 |
| 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| | 93 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 92 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 91 |
| Mechanical brake component has restricted free movement | 91 |
| Nearside Front Headlamp insecure |1.7.3| | 90 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 88 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 88 |
| Central Stop lamp not working |1.2.1b| | 87 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 87 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 87 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 85 |
| Offside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 84 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 82 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 82 |
| Anti-lock braking system warning lamp indicates an ABS fault | 81 |
| Offside Front Position lamp not working |4.2.1 |a|| | 79 |
| Offside Front Headlamp insecure |1.7.3| | 78 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 77 |
| Parking brake lever has no reserve travel |3.1.6b| | 77 |
| Offside Front coil spring fractured |2.4.C.1a| | 76 |
| Front brake excessively fluctuating | 76 |
| 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| | 76 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 76 |