| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 209 |
| Registration plate issues | 107 |
| Brake pipe excessively corroded | 69 |
| Windscreen wiper does not clear the windscreen effectively | 54 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 23 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 16 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 16 |
| Windscreen washer not working | 15 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 14 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Nearside Rear Shock absorbers has a serious fluid leak | 7 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 6 |
| Offside Rear Shock absorbers has a serious fluid leak | 6 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Electronic parking brake warning indicates a malfunction (1.1.6 (e)) | 5 |
| Brakes imbalanced across an axle | 5 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 4 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Electronic parking brake warning indicates a malfunction |1.1.6 |e|| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 3 |
| Horn not working |1.6.2a| | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Electronic power steering warning lamp indicates a system malfunction (2.6 (a)) | 3 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Brake performance not tested (1.2.1 (g)) | 3 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 3 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Registration plate lamp issues | 3 |
| Offside Headlamp aim not tested (4.1.2 (b)) | 3 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |