| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 319 |
| Headlamp aim out of alignment | 184 |
| Registration plate lamp issues | 101 |
| Brake pipe excessively corroded | 70 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 38 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 37 |
| Registration plate issues | 32 |
| Front brake disc in such a condition that it is seriously weakened | 25 |
| Offside Side repeater not working |1.4.A.2c| | 19 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 18 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 17 |
| Nearside Side repeater not working |1.4.A.2c| | 16 |
| Windscreen washer not working | 16 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Offside Rear Shock absorbers has a serious fluid leak | 12 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Brakes imbalanced across an axle | 10 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Nearside Rear Shock absorbers has a serious fluid leak | 10 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 9 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 8 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 8 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 7 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Rear brake disc in such a condition that it is seriously weakened | 6 |
| Offside Front Position lamp not working |4.2.1 |a|| | 6 |
| Nearside Stop lamp not working |1.2.1b| | 6 |
| Offside Stop lamp not working |1.2.1b| | 6 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 5 |
| Front brake excessively fluctuating | 5 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 5 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Brake performance not tested (1.2.1 (g)) | 5 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 5 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Offside Front Side repeater not working |1.4.A.2c| | 4 |
| Windscreen wiper blade insecure | 4 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 4 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Electronic stability control switch not functioning correctly (7.12 (d)) | 4 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 4 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Reversing lamp inoperative (4.6.1 (a)) | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 3 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 3 |
| Offside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 3 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 3 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 3 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Side repeater not working |4.4.1 |a| |ii|| | 3 |