| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 780 |
| Headlamp aim out of alignment | 640 |
| Registration plate lamp issues | 504 |
| Brake pipe excessively corroded | 181 |
| Horn not working (7.7 (a) (ii)) | 160 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 140 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 138 |
| Horn not working |1.6.2a| | 132 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 131 |
| Horn not working (7.7 (a)) | 116 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 110 |
| Registration plate issues | 88 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 87 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 79 |
| Horn not working |7.7 |a| |ii|| | 77 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 60 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 53 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 53 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 49 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 49 |
| Windscreen washer not working | 45 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 41 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Rear Shock absorbers has a serious fluid leak | 38 |
| Offside Front Position lamp not working |4.2.1 |a|| | 38 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 36 |
| Nearside Rear Shock absorbers has a serious fluid leak | 35 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 35 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 34 |
| Front brake disc in such a condition that it is seriously weakened | 33 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 31 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 30 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 25 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 25 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 25 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 24 |
| Rear brake disc in such a condition that it is seriously weakened | 24 |
| Parking brake lever has no reserve travel |3.1.6b| | 23 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 22 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 22 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 21 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 21 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 20 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 19 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 17 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 17 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 17 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 17 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 16 |
| Brakes imbalanced across an axle | 16 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 16 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Windscreen has damage | 15 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 14 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 12 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 12 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 12 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 12 |