| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 752 |
| Brake pipe excessively corroded | 606 |
| Headlamp aim out of alignment | 447 |
| Registration plate lamp issues | 247 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 92 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 87 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 64 |
| Brakes imbalanced across an axle | 52 |
| Registration plate issues | 46 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 46 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 37 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 36 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 36 |
| Anti-lock braking system warning lamp indicates an ABS fault | 33 |
| Nearside Stop lamp not working |1.2.1b| | 30 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 29 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Offside Stop lamp not working |1.2.1b| | 27 |
| Offside Front Position lamp not working |4.2.1 |a|| | 26 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 26 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 26 |
| Power steering component|s| leaking |2.3.3b| | 25 |
| Battery insecure |1.9.1| | 24 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 24 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Windscreen wiper blade insecure | 24 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 23 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 23 |
| Rear brake binding | 23 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 23 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 19 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 19 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Windscreen washer not working | 17 |
| Offside Rear fog lamp not working |1.3.2b| | 16 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 16 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 15 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 15 |
| Parking brake: efficiency below requirements |3.7.B.7| | 15 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 14 |
| Service brake: efficiency below requirements |3.7.B.7| | 14 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 13 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 13 |
| Front brake excessively fluctuating | 12 |
| Nearside Rear Stop lamp not working |1.2.1b| | 12 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 12 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 12 |
| Front brake application uneven | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 11 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 11 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Power steering fluid level below minimum |2.3.1| | 10 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 10 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 10 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 10 |
| Windscreen has damage | 9 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Offside Seat belt anchorage prescribed area is excessively corroded outer sill |5.2.6| | 9 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 9 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Nearside Seat belt anchorage prescribed area is excessively corroded outer sill |5.2.6| | 9 |
| Nearside Side repeater not working |1.4.A.2c| | 9 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 9 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 9 |
| Offside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 9 |