| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 440 |
| Windscreen wiper does not clear the windscreen effectively | 421 |
| Registration plate issues | 80 |
| Brakes imbalanced across an axle | 58 |
| Brake pipe excessively corroded | 50 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 46 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 44 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 34 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 33 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 29 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 28 |
| Parking brake lever has no reserve travel |3.1.6b| | 27 |
| Nearside Rear Shock absorbers has a serious fluid leak | 20 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 20 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 18 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 17 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 16 |
| Registration plate lamp issues | 15 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Front brake disc in such a condition that it is seriously weakened | 14 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 13 |
| Rear brake application uneven | 13 |
| Offside Front Position lamp not working |4.2.1 |a|| | 13 |
| Rear brake disc in such a condition that it is seriously weakened | 13 |
| Offside Rear Shock absorbers has a serious fluid leak | 12 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 12 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 11 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Anti-lock braking system warning lamp indicates an ABS fault | 11 |
| Windscreen washer not working | 11 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 11 |
| Windscreen has damage | 9 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 9 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 9 |
| Nearside Front Shock absorbers has a serious fluid leak | 9 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Battery insecure |1.9.1| | 8 |
| Parking brake: efficiency below requirements |3.7.B.7| | 8 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 7 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 7 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 7 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Emissions not tested (8.2.1.2 (d)) | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 6 |
| Offside Front Shock absorbers has a serious fluid leak | 6 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 6 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 6 |