| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 600 |
| Headlamp aim out of alignment | 448 |
| Registration plate lamp issues | 403 |
| Brake pipe excessively corroded | 328 |
| Brakes imbalanced across an axle | 121 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 111 |
| Offside Stop lamp not working |1.2.1b| | 97 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 87 |
| Registration plate issues | 86 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 55 |
| Anti-lock braking system warning lamp indicates an ABS fault | 53 |
| Nearside Stop lamp not working |1.2.1b| | 52 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 52 |
| Parking brake: efficiency below requirements |3.7.B.7| | 48 |
| Rear brake disc in such a condition that it is seriously weakened | 47 |
| Front brake disc in such a condition that it is seriously weakened | 46 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 43 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 42 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 39 |
| Offside Rear Stop lamp not working |1.2.1b| | 37 |
| Rear brake binding | 32 |
| Rear parking brake recording little or no effort | 31 |
| Centre Stop lamp not working |1.2.1b| | 29 |
| Parking brake lever has no reserve travel |3.1.6b| | 29 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 27 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 26 |
| Offside Front Position lamp not working |4.2.1 |a|| | 23 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 23 |
| Brake hose excessively deteriorated | 22 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 22 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 21 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 21 |
| Windscreen washer not working | 21 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 21 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 20 |
| Rear brake application uneven | 20 |
| Nearside Rear Stop lamp not working |1.2.1b| | 19 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 19 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 19 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 19 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Battery insecure |1.9.1| | 18 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 18 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 17 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 15 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 15 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Windscreen has damage | 14 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 14 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Service brake: efficiency below requirements |3.7.B.7| | 14 |
| Front brake excessively fluctuating | 14 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 13 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Centre Rear Stop lamp not working |1.2.1b| | 13 |
| Rear Exhaust system not adequately supported |7.1.1| | 13 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 12 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 12 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Stop lamp not working |1.2.1b| | 12 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 11 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 11 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 11 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 11 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 10 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 10 |
| Windscreen wiper blade insecure | 10 |
| Offside front brake binding |3.7.B.1| | 9 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 9 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Front brake application uneven | 9 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Horn not working |1.6.2a| | 8 |
| Offside Rear Shock absorbers has a serious fluid leak | 8 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 8 |