| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 577 |
| Headlamp aim out of alignment | 350 |
| Brake pipe excessively corroded | 264 |
| Registration plate lamp issues | 244 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 161 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 87 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 63 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 59 |
| Registration plate issues | 53 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 47 |
| Brakes imbalanced across an axle | 43 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 40 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 38 |
| Offside Front coil spring broken |2.4.C.1a| | 33 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 33 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 32 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 31 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 30 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 27 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 27 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 23 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Windscreen washer not working | 22 |
| Front brake disc in such a condition that it is seriously weakened | 20 |
| Offside Front Position lamp not working |4.2.1 |a|| | 18 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 18 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 17 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 17 |
| Horn not working |1.6.2a| | 15 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Nearside Headlamp insecure (4.1.1 (c)) | 12 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 11 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 11 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 11 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 11 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 10 |
| Front brake application uneven | 9 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 8 |
| Windscreen wiper blade insecure | 8 |
| Front brake excessively fluctuating | 8 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 8 |
| Windscreen has damage | 8 |
| Offside Rear Shock absorbers has a serious fluid leak | 8 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Headlamp insecure |1.7.3| | 7 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |