| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 747 |
| Headlamp aim out of alignment | 463 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 349 |
| Registration plate lamp issues | 167 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 131 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 131 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 129 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 118 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 106 |
| Rear brake disc in such a condition that it is seriously weakened | 90 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 82 |
| Windscreen washer not working | 79 |
| Brakes imbalanced across an axle | 77 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 67 |
| Registration plate issues | 54 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 53 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 50 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 49 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 48 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 46 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 44 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 44 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 41 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 39 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 38 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 38 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 37 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 35 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 34 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 30 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 28 |
| Nearside Side repeater with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 23 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 23 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 22 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 21 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 21 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 19 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Rear fog lamp tell-tale not working (4.9.1 (a) (ii)) | 18 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 17 |
| Rear fog lamp switch inoperative (4.5.3 (a)) | 17 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 17 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 16 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 16 |
| Offside Rear Shock absorbers has a serious fluid leak | 15 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 15 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 15 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 14 |
| Front brake disc in such a condition that it is seriously weakened | 14 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 14 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 13 |
| Rear fog lamp switch not operating in accordance with the requirements (4.5.3 (a)) | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 12 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 11 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 11 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 10 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |