| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 828 |
| Windscreen wiper does not clear the windscreen effectively | 516 |
| Parking brake: efficiency below requirements |3.7.B.7| | 198 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 152 |
| Registration plate issues | 148 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 146 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 146 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 126 |
| Rear parking brake recording little or no effort | 118 |
| Parking brake lever has no reserve travel |3.1.6b| | 115 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 107 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 106 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 103 |
| Brake pipe excessively corroded | 84 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 83 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 82 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 78 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 77 |
| Brakes imbalanced across an axle | 69 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 67 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 65 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 64 |
| Anti-lock braking system warning lamp indicates an ABS fault | 62 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 60 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 59 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 59 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 58 |
| Offside Rear Shock absorbers has a serious fluid leak | 56 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 53 |
| Nearside Rear Shock absorbers has a serious fluid leak | 53 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 48 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 45 |
| Nearside Front Shock absorbers has a serious fluid leak | 43 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 43 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 41 |
| Offside Front Shock absorbers has a serious fluid leak | 39 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 37 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 36 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 35 |
| Rear brake disc in such a condition that it is seriously weakened | 31 |
| Front brake disc in such a condition that it is seriously weakened | 30 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 30 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 28 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 25 |
| Rear brake application uneven | 23 |
| Windscreen has damage | 23 |
| Registration plate lamp issues | 22 |
| Offside Front Position lamp not working |4.2.1 |a|| | 22 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Battery insecure |1.9.1| | 19 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 19 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 19 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 18 |
| Emissions not tested (8.2.1.2 (d)) | 16 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 12 |
| Windscreen wiper blade insecure | 12 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 12 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 11 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 11 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 11 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 11 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 11 |