| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1359 |
| Windscreen wiper does not clear the windscreen effectively | 1190 |
| Registration plate issues | 311 |
| Brakes imbalanced across an axle | 274 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 208 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 201 |
| Brake pipe excessively corroded | 180 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 175 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 161 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 160 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 125 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 114 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 112 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 96 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 90 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 88 |
| Parking brake: efficiency below requirements |3.7.B.7| | 85 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 78 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 77 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 76 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 69 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 68 |
| Offside Front Position lamp not working |4.2.1 |a|| | 66 |
| Rear brake disc in such a condition that it is seriously weakened | 58 |
| Front brake application uneven | 57 |
| Front brake disc in such a condition that it is seriously weakened | 57 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 55 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 55 |
| Rear parking brake recording little or no effort | 54 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 54 |
| Windscreen has damage | 51 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 51 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 50 |
| Anti-lock braking system warning lamp indicates an ABS fault | 50 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 50 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 49 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 48 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 47 |
| Rear brake application uneven | 44 |
| Battery insecure |1.9.1| | 44 |
| Nearside Front Shock absorbers has a serious fluid leak | 44 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 44 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 41 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 41 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 41 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 39 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 38 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 37 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 37 |
| Parking brake lever has no reserve travel |3.1.6b| | 35 |
| Front brake excessively fluctuating | 34 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 30 |
| Emissions not tested (8.2.1.2 (d)) | 30 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 29 |
| Nearside Rear Shock absorbers has a serious fluid leak | 27 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Brake pedal spongy |3.3.B.1b| | 26 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 26 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 26 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 25 |
| Registration plate lamp issues | 25 |
| Offside Front Shock absorbers has a serious fluid leak | 25 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 24 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 23 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 23 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 23 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 23 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 22 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 21 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 20 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 20 |