| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 228 |
| Windscreen wiper does not clear the windscreen effectively | 199 |
| Headlamp aim out of alignment | 155 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 110 |
| Brake pipe excessively corroded | 55 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 45 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 44 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 36 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 35 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 32 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 26 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 25 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 22 |
| Windscreen washer not working | 22 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 21 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 20 |
| Registration plate issues | 20 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 15 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 15 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 15 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 14 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 12 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 12 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 11 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 8 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Central Prop shaft bearing excessively worn (6.1.7 (b) (i)) | 7 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Brakes imbalanced across an axle | 6 |
| Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 6 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 5 |
| Brake performance not tested (1.2.1 (g)) | 5 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 5 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 5 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 4 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 4 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 4 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 4 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |