| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 94 |
| Windscreen wiper does not clear the windscreen effectively | 44 |
| Registration plate issues | 20 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Brake pipe excessively corroded | 19 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 16 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 14 |
| Parking brake: efficiency below requirements |3.7.B.7| | 12 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Brakes imbalanced across an axle | 9 |
| Offside Rear Shock absorbers has a serious fluid leak | 9 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Rear parking brake recording little or no effort | 8 |
| Nearside Front Shock absorbers has a serious fluid leak | 8 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Nearside Rear Shock absorbers has a serious fluid leak | 7 |
| Offside Front Shock absorbers has a serious fluid leak | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Parking brake lever has no reserve travel |3.1.6b| | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 4 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 4 |
| Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Offside front brake binding |3.7.B.1| | 3 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Nearside Rear Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i|| | 2 |
| Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Registration plate lamp issues | 2 |
| Nearside rear brake excessively fluctuating |3.7.B.3| | 2 |
| Nearside Front Headlamp levelling device obviously defective |1.7.2| | 2 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 2 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2 |
| Offside Front Service brake lagging in operation |1.2.1 |d|| | 2 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Offside Rear Exhaust has a major leak of exhaust gases silencer (6.1.2 (a)) | 2 |