| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 557 |
| Registration plate lamp issues | 112 |
| Windscreen wiper does not clear the windscreen effectively | 86 |
| Registration plate issues | 72 |
| Nearside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 47 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 40 |
| Offside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 39 |
| Reversing lamp inoperative (4.6.1 (a)) | 30 |
| Windscreen washer not working | 28 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 24 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 20 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 15 |
| Nearside Rear Upper Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 15 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Brake performance unable to be tested (1.2.1 (g)) | 11 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 11 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 10 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 10 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 10 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 9 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 8 |
| Brakes imbalanced across an axle | 8 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Offside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 8 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 8 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Nearside Rear Road wheel fractured (5.2.2 (a)) | 7 |
| Rear Reversing lamp inoperative (4.6.1 (a)) | 7 |
| Nearside Front Road wheel fractured (5.2.2 (a)) | 7 |
| Offside Rear Suspension arm pin or bush excessively worn Traction control arm (5.3.4 (a) (i)) | 6 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 6 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |