| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 265 |
| Windscreen wiper does not clear the windscreen effectively | 200 |
| Headlamp aim out of alignment | 178 |
| Parking brake: efficiency below requirements |3.7.B.7| | 97 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 81 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 62 |
| Brake pipe excessively corroded | 62 |
| Rear parking brake recording little or no effort | 52 |
| Nearside Rear Leaf spring fractured |2.4.B.1a| | 49 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 40 |
| Parking brake lever has no reserve travel |3.1.6b| | 39 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Rear brake binding | 38 |
| Brakes imbalanced across an axle | 35 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 35 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 30 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 30 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 29 |
| Offside Rear Leaf spring cracked |2.4.B.1a| | 28 |
| Windscreen washer not working | 24 |
| Front brake disc in such a condition that it is seriously weakened | 24 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 24 |
| Nearside Rear Leaf spring fractured (5.3.1 (b) (i)) | 22 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 21 |
| Offside Rear Leaf spring fractured (5.3.1 (b) (i)) | 20 |
| Nearside Rear Leaf spring cracked |2.4.B.1a| | 19 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 17 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 16 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 16 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 16 |
| Anti-lock braking system warning lamp indicates an ABS fault | 15 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 15 |
| Registration plate issues | 14 |
| rear parking |secondary| brakes imbalanced | 14 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Offside Front Position lamp not working |4.2.1 |a|| | 10 |
| Offside Stop lamp not working |1.2.1b| | 10 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 10 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Windscreen has damage | 9 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Battery insecure |1.9.1| | 8 |
| Nearside Rear Leaf spring fractured |5.3.1 |b| |i|| | 8 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 8 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 8 |
| Offside Rear Leaf spring fractured |5.3.1 |b| |i|| | 7 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 6 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 6 |
| Nearside Rear reflector missing |1.5.1a| | 6 |
| Nearside Rear reflector excessively damaged so that its function is impaired |1.5.1c| | 6 |
| Offside Rear reflector excessively damaged so that its function is impaired |1.5.1c| | 6 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 6 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 6 |
| Offside Steering rack gaiter insecure |2.2.D.2d| | 6 |
| Rear brake application uneven | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 6 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Offside Side repeater incorrect colour (4.4.3 (a)) | 6 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 5 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 5 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 5 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 5 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Service brake: efficiency below requirements |3.7.B.7| | 5 |
| Nearside Side repeater incorrect colour (4.4.3 (a)) | 5 |
| Offside Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 5 |
| Brake performance not tested (1.2.1 (g)) | 5 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 5 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 4 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 4 |
| Front brake application uneven | 4 |
| Offside Rear reflector missing |1.5.1a| | 4 |
| Nearside Rear Rear reflector missing |1.5.1a| | 4 |
| Front brake excessively fluctuating | 4 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 4 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 4 |
| Windscreen wiper blade insecure | 4 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 4 |
| Nearside Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 4 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Nearside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 4 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |