| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 131 |
| Windscreen wiper does not clear the windscreen effectively | 74 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 23 |
| Brakes imbalanced across an axle | 18 |
| Registration plate issues | 15 |
| Brake pipe excessively corroded | 14 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 9 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 8 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 8 |
| Parking brake: efficiency below requirements |3.7.B.7| | 8 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 8 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 7 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 7 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Rear brake application uneven | 7 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Front Shock absorbers has a serious fluid leak | 6 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Registration plate lamp issues | 5 |
| Parking brake lever has no reserve travel |3.1.6b| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Rear parking brake recording little or no effort | 5 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 4 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Battery insecure |1.9.1| | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Offside Front Direction indicator not working |1.4.A.2c| | 4 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 4 |
| Offside Front Shock absorbers has a serious fluid leak | 4 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 4 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 3 |
| Offside Rear Service brake excessively fluctuating |1.2.1 |e|| | 3 |
| Front brake excessively fluctuating | 3 |
| Front brake application uneven | 3 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 2 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Windscreen has damage | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 2 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 2 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 2 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 2 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 2 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 2 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 2 |
| Nearside Front Headlamp aim not tested (4.1.2 (b)) | 2 |