| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 207 |
| Headlamp aim out of alignment | 105 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 71 |
| Brake pipe excessively corroded | 69 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 51 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 51 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 46 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 43 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 28 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 26 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Registration plate lamp issues | 24 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 19 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 18 |
| Nearside Front Shock absorbers has a serious fluid leak | 16 |
| Offside Front Shock absorbers has a serious fluid leak | 15 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Brakes imbalanced across an axle | 14 |
| Windscreen washer not working | 13 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 13 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 12 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 12 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 11 |
| Nearside Rear Shock absorbers has a serious fluid leak | 11 |
| Registration plate issues | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 10 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 10 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 10 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 9 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Offside Rear Shock absorbers has a serious fluid leak | 9 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 7 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Front brake excessively fluctuating | 7 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 6 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Rear coil spring broken |2.4.C.1a| | 6 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 6 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Exhaust emissions exceed default limit of 1.5m-1 |8.2.2.2 |b|| | 5 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Nearside Rear coil spring broken |2.4.C.1a| | 4 |
| Front Suspension arm ball joint excessively worn both (5.3.4 (a) (i)) | 4 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 4 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 4 |