| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4434 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 3672 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 1576 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1361 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1332 |
| Windscreen wiper does not clear the windscreen effectively | 1261 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1026 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 972 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 935 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 867 |
| Windscreen washer not working | 734 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 714 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 693 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 637 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 595 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 592 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 541 |
| Exhaust emissions exceed default limit of 0.7m-1 |8.2.2.2 |b|| | 514 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 461 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 455 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 441 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour |8.2.2.2 |d|| | 415 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 414 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 413 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 393 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 385 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 381 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 366 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 357 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 351 |
| Front brake disc in such a condition that it is seriously weakened | 345 |
| Nearside Stop lamp not working |1.2.1b| | 333 |
| Registration plate issues | 333 |
| Offside Stop lamp not working |1.2.1b| | 330 |
| Brakes imbalanced across an axle | 306 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 305 |
| Offside Rear Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i)) | 280 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 273 |
| Registration plate lamp issues | 272 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 268 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 268 |
| Nearside Rear Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i)) | 258 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 257 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 238 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 234 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 224 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 176 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 169 |
| Nearside Rear Stop lamp not working |1.2.1b| | 159 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 153 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 152 |
| Offside Rear Stop lamp not working |1.2.1b| | 152 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 151 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 151 |
| Exhaust emissions exceed manufacturers specified limit 0.54 (8.2.2.2 (a)) | 151 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 149 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 147 |
| Exhaust emissions test aborted because smoke levels are significantly in excess of the specified limit values |8.2.2.2 |f|| | 142 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 125 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 125 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 122 |
| Horn not working (7.7 (a)) | 119 |
| Horn not working (7.7 (a) (ii)) | 114 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 100 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 98 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 98 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 95 |
| Offside Rear Shock absorbers has a serious fluid leak | 95 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 95 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 94 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 94 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 94 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 93 |
| Nearside Front Shock absorbers has a serious fluid leak | 92 |