| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 5908 |
| Brake pipe excessively corroded | 3653 |
| Headlamp aim out of alignment | 3107 |
| Registration plate lamp issues | 2985 |
| Horn not working |1.6.2a| | 520 |
| Brakes imbalanced across an axle | 499 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 498 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 468 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 323 |
| Offside Stop lamp not working |1.2.1b| | 316 |
| Nearside Stop lamp not working |1.2.1b| | 307 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 296 |
| Anti-lock braking system warning lamp indicates an ABS fault | 294 |
| Front brake disc in such a condition that it is seriously weakened | 253 |
| Windscreen washer not working | 233 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 232 |
| Horn not working (7.7 (a) (ii)) | 231 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 230 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 230 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 226 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 224 |
| Registration plate issues | 220 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 198 |
| Horn not working (7.7 (a)) | 182 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 172 |
| Horn not working |7.7 |a| |ii|| | 149 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 144 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 141 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 134 |
| Nearside Rear Stop lamp not working |1.2.1b| | 133 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 128 |
| Offside Front Position lamp not working |4.2.1 |a|| | 126 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 123 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 119 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 118 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 113 |
| Offside Rear Stop lamp not working |1.2.1b| | 113 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 106 |
| Brake hose excessively deteriorated | 102 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 101 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 100 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 100 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 98 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 98 |
| Windscreen wiper blade insecure | 91 |
| Rear brake binding | 86 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 83 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 79 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 78 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 77 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 75 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 74 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 73 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 70 |
| Emissions not tested (8.2.1.2 (d)) | 69 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 68 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 68 |
| Offside front brake binding |3.7.B.1| | 67 |
| Front brake excessively fluctuating | 67 |
| Offside Rear Shock absorbers has a serious fluid leak | 64 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 63 |
| Front brake application uneven | 63 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 62 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 61 |
| Nearside Rear Shock absorbers has a serious fluid leak | 61 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 59 |