| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12606 |
| Windscreen wiper does not clear the windscreen effectively | 11241 |
| Registration plate lamp issues | 5825 |
| Brake pipe excessively corroded | 3473 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3060 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2797 |
| Nearside Stop lamp not working |1.2.1b| | 2304 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2108 |
| Offside Stop lamp not working |1.2.1b| | 2040 |
| Parking brake lever has no reserve travel |3.1.6b| | 1985 |
| Registration plate issues | 1978 |
| Centre Stop lamp not working |1.2.1b| | 1842 |
| Brakes imbalanced across an axle | 1791 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1694 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1586 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 1341 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1280 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1218 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1160 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1081 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1037 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1019 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 992 |
| Rear parking brake recording little or no effort | 951 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 944 |
| Offside Rear Stop lamp not working |1.2.1b| | 936 |
| Rear brake binding | 838 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 824 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 768 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 635 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 626 |
| Front brake disc in such a condition that it is seriously weakened | 604 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 591 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 540 |
| Centre Rear Stop lamp not working |1.2.1b| | 496 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 478 |
| Offside Rear fog lamp not working |1.3.2b| | 477 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 465 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 455 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 449 |
| Service brake: efficiency below requirements |3.7.B.7| | 437 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 423 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 406 |
| Anti-lock braking system warning lamp indicates an ABS fault | 404 |
| Windscreen has damage | 394 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 394 |
| Stop lamp not working |1.2.1b| | 370 |
| Rear brake disc in such a condition that it is seriously weakened | 352 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 349 |
| Battery insecure |1.9.1| | 347 |
| Front brake application uneven | 343 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 338 |
| Windscreen wiper blade insecure | 336 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 336 |
| Windscreen washer not working | 335 |
| Offside Front coil spring broken |2.4.C.1a| | 333 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 332 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 328 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 316 |
| Nearside Front Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 306 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 297 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 295 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 285 |
| Brake hose excessively deteriorated | 277 |
| Offside Front Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 277 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 274 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 265 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 253 |
| Nearside Front coil spring broken |2.4.C.1a| | 245 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 244 |
| Rear fog lamp not working |1.3.2b| | 239 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 237 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 235 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 234 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 234 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 228 |
| Offside Front Position lamp not working |4.2.1 |a|| | 223 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 222 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 220 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 214 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 212 |
| Horn not working |1.6.2a| | 205 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 199 |
| Nearside Rear Brake pipe leaking |3.6.A.1| | 195 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 190 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 189 |
| Nearside Headlamp not working on main beam |1.7.5a| | 187 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 184 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 183 |