| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 804 |
| Headlamp aim out of alignment | 482 |
| Brake pipe excessively corroded | 267 |
| Registration plate lamp issues | 164 |
| Front brake disc in such a condition that it is seriously weakened | 131 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 113 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 111 |
| Anti-lock braking system warning lamp indicates an ABS fault | 76 |
| Offside Side repeater not working |1.4.A.2c| | 76 |
| Nearside Side repeater not working |1.4.A.2c| | 59 |
| Nearside Stop lamp not working |1.2.1b| | 57 |
| Registration plate issues | 56 |
| Offside Stop lamp not working |1.2.1b| | 55 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 52 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 48 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 47 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 42 |
| Brakes imbalanced across an axle | 42 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 38 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 38 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 38 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 35 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 34 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 32 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 32 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 29 |
| Windscreen washer not working | 28 |
| Front brake excessively fluctuating | 27 |
| Offside Rear Stop lamp not working |1.2.1b| | 26 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 26 |
| Rear brake disc in such a condition that it is seriously weakened | 24 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 24 |
| Offside Front Position lamp not working |4.2.1 |a|| | 24 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 21 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 20 |
| Windscreen wiper blade insecure | 18 |
| Offside Rear Shock absorbers has a serious fluid leak | 16 |
| Nearside Rear Shock absorbers has a serious fluid leak | 15 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 15 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 14 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 13 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 13 |
| Nearside Front Side repeater not working |1.4.A.2c| | 13 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 13 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 12 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 12 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 11 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 11 |
| Offside Front Side repeater not working |1.4.A.2c| | 11 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 11 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 10 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 10 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 10 |
| Offside Front coil spring broken |2.4.C.1a| | 10 |
| Service brake: efficiency below requirements |3.7.C.1a| | 10 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Rear parking brake recording little or no effort | 9 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 9 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Parking brake lever has no reserve travel |3.1.6b| | 9 |