| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20835 |
| Windscreen wiper does not clear the windscreen effectively | 19493 |
| Registration plate lamp issues | 16531 |
| Offside Stop lamp not working |1.2.1b| | 8138 |
| Brake pipe excessively corroded | 7467 |
| Nearside Stop lamp not working |1.2.1b| | 6607 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6562 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5845 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 5510 |
| Brakes imbalanced across an axle | 4744 |
| Offside Rear Stop lamp not working |1.2.1b| | 3514 |
| Registration plate issues | 3472 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 3386 |
| Rear parking brake recording little or no effort | 3329 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 2943 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2912 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2801 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 2667 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 2408 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 2283 |
| Rear brake binding | 2084 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2060 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1962 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1771 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1771 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1752 |
| Service brake: efficiency below requirements |3.7.B.7| | 1632 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1623 |
| Offside front brake binding |3.7.B.1| | 1581 |
| Parking brake lever has no reserve travel |3.1.6b| | 1571 |
| Offside Front coil spring fractured |2.4.C.1a| | 1519 |
| Nearside front brake binding |3.7.B.1| | 1503 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1488 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1476 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1463 |
| Battery insecure |1.9.1| | 1450 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1355 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1273 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1204 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 1201 |
| Front brake disc in such a condition that it is seriously weakened | 1167 |
| Front brake application uneven | 1142 |
| Offside Front coil spring broken |2.4.C.1a| | 1128 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1086 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1065 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1039 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1012 |
| Emissions not tested |7.0| | 906 |
| Offside Rear fog lamp not working |1.3.2b| | 905 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 903 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 884 |
| Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 867 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 848 |
| Horn not working |1.6.2a| | 822 |
| Nearside Front coil spring fractured |2.4.C.1a| | 819 |
| Offside Front front brake binding |3.7.B.1| | 808 |
| Offside Front coil spring incomplete |2.4.C.1a| | 778 |
| Nearside Front front brake binding |3.7.B.1| | 772 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 752 |
| Rear brake disc in such a condition that it is seriously weakened | 709 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 700 |
| Windscreen wiper blade insecure | 684 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 651 |
| Windscreen has damage | 647 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 633 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 632 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 626 |
| Nearside Headlamp insecure |1.7.3| | 617 |
| Mechanical brake component has restricted free movement | 616 |
| Rear brake application uneven | 576 |
| Front Exhaust system not adequately supported |7.1.1| | 569 |
| Exhaust system not adequately supported |7.1.1| | 566 |
| Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 562 |
| Nearside Front coil spring broken |2.4.C.1a| | 557 |
| Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 517 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 514 |
| Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 502 |
| Offside Headlamp insecure |1.7.3| | 501 |
| Rear fog lamp not working |1.3.2b| | 493 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 478 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 473 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 466 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 446 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 432 |
| Offside Headlamp not working on main beam |1.7.5a| | 430 |
| Centre Stop lamp not working |1.2.1b| | 428 |
| Stop lamp not working |1.2.1b| | 385 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 383 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 373 |
| Brake hose excessively deteriorated | 363 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 361 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 359 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 357 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 350 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 350 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 348 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 348 |
| Nearside Headlamp not working on main beam |1.7.5a| | 338 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 331 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 323 |
| Front position lamp|s| not working |1.1.A.3b| | 321 |