| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 6632 |
| Headlamp aim out of alignment | 2127 |
| Brake pipe excessively corroded | 1501 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 699 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 636 |
| Registration plate lamp issues | 633 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 552 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 535 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 478 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 454 |
| Brakes imbalanced across an axle | 355 |
| Windscreen washer not working | 326 |
| Offside Stop lamp not working |1.2.1b| | 323 |
| Horn not working (7.7 (a) (ii)) | 290 |
| Horn not working (7.7 (a)) | 264 |
| Nearside Stop lamp not working |1.2.1b| | 261 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 208 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 191 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 186 |
| Registration plate issues | 182 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 172 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 165 |
| Offside Rear Stop lamp not working |1.2.1b| | 161 |
| Front brake disc in such a condition that it is seriously weakened | 156 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 146 |
| Nearside Rear Stop lamp not working |1.2.1b| | 144 |
| Horn sound not in accordance with requirements (7.7 (c)) | 137 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 135 |
| Horn not working |1.6.2a| | 133 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 132 |
| Offside Front Position lamp not working |4.2.1 |a|| | 115 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 111 |
| Horn not working |7.7 |a| |ii|| | 106 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 104 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 102 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 101 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 94 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 94 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 92 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 87 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 87 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 80 |
| Windscreen wiper blade insecure | 73 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 71 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 70 |
| Offside Rear Shock absorbers has a serious fluid leak | 67 |
| Nearside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 67 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 64 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 64 |
| Anti-lock braking system warning lamp indicates an ABS fault | 59 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 58 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 57 |
| Offside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 56 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 55 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 54 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 54 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 54 |