| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 434 |
| Headlamp aim out of alignment | 176 |
| Registration plate lamp issues | 46 |
| Anti-lock braking system warning lamp indicates an ABS fault | 41 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 36 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 24 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 23 |
| Horn not working (7.7 (a)) | 22 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Windscreen washer not working | 19 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 19 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 18 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 17 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 17 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 16 |
| Nearside Front Daytime running lamp not working (4.2.1 (a) (ii)) | 15 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Registration plate issues | 14 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 13 |
| Nearside Daytime running lamp not working (4.2.1 (a) (ii)) | 13 |
| Offside Front Daytime running lamp not working (4.2.1 (a) (ii)) | 12 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 11 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 7 |
| Central Rear Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Daytime running lamp not working (4.2.1 (a) (ii)) | 7 |
| Central Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Offside Rear Anti-lock braking system wiring excessively damaged (1.6 (d)) | 6 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Nearside Front Front fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 5 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Central Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 5 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Nearside Rear Anti-lock braking system wiring excessively damaged (1.6 (d)) | 4 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 4 |
| Offside Rear Position lamp lens seriously defective (4.2.1 (b)) | 4 |
| Offside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 4 |
| Front passenger door cannot be opened from inside the vehicle (6.2.3 (a)) | 4 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Reversing lamp inoperative (4.6.1 (a)) | 4 |
| Offside Headlamp aim unable to be tested (4.1.2 (b)) | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 4 |