| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 147 |
| Headlamp aim out of alignment | 113 |
| Brake pipe excessively corroded | 67 |
| Registration plate lamp issues | 59 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 19 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Front brake disc in such a condition that it is seriously weakened | 11 |
| Registration plate issues | 11 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 10 |
| Parking brake: efficiency below requirements |3.7.B.7| | 10 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Horn not working (7.7 (a)) | 7 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Front brake excessively fluctuating | 6 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 6 |
| Brakes imbalanced across an axle | 6 |
| Nearside Stop lamp not working |1.2.1b| | 6 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Horn not working |1.6.2a| | 5 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Front Shock absorbers has a serious fluid leak | 5 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Rear parking brake recording little or no effort | 5 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 4 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 4 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 4 |
| Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 4 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Side repeater not working |1.4.A.2c| | 3 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 3 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 3 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 3 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 3 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Anti-lock braking system warning lamp indicates an ABS fault | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Rear brake binding | 3 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 2 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 2 |
| Front brake application uneven | 2 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Stop lamp|s| all not working |4.3.1 |a| |iii|| | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 2 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Offside Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Shock absorbers has a serious fluid leak | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 2 |
| Nearside Side repeater has less than 50% of the light sources illuminating |1.4.A.2c| | 2 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |