| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 559 |
| Brake pipe excessively corroded | 317 |
| Headlamp aim out of alignment | 261 |
| Centre Stop lamp not working |1.2.1b| | 67 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 65 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 53 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 51 |
| Brakes imbalanced across an axle | 48 |
| Offside Stop lamp not working |1.2.1b| | 44 |
| Registration plate issues | 43 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 40 |
| Registration plate lamp issues | 40 |
| Nearside Stop lamp not working |1.2.1b| | 37 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 34 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 33 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 32 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 31 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Rear brake binding | 29 |
| Brake hose excessively deteriorated | 29 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 29 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 28 |
| Rear Exhaust system insecure (6.1.2 (a)) | 26 |
| Rear Exhaust system not adequately supported |7.1.1| | 25 |
| Parking brake: efficiency below requirements |3.7.B.7| | 23 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 21 |
| Rear parking brake recording little or no effort | 20 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 19 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 19 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 19 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Windscreen washer not working | 18 |
| Nearside Rear Stop lamp not working |1.2.1b| | 16 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Offside Front Position lamp not working |4.2.1 |a|| | 16 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 16 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Stop lamp not working |1.2.1b| | 15 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Windscreen wiper blade insecure | 14 |
| Centre Rear Stop lamp not working |1.2.1b| | 14 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 14 |
| Mechanical brake component has restricted free movement | 13 |
| Rear Exhaust system insecure |6.1.2 |a|| | 13 |
| Offside front brake binding |3.7.B.1| | 13 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 13 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 12 |
| Offside Rear Stop lamp not working |1.2.1b| | 12 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 12 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 11 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 11 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 11 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 10 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 10 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 10 |
| Front brake application uneven | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 10 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 9 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 9 |
| Nearside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Rear Mechanical brake component has restricted free movement | 9 |
| Nearside front brake binding |3.7.B.1| | 8 |
| Nearside Front front brake binding |3.7.B.1| | 8 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 8 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength outer sill (5.3.6 (a) (i)) | 8 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 8 |
| Offside Rear Outer Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill (5.3.6 (a) (i)) | 8 |
| Central Stop lamp not working |1.2.1b| | 8 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Nearside Rear Shock absorbers has a serious fluid leak | 7 |
| Central Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 7 |
| Anti-lock braking system warning lamp indicates an ABS fault | 7 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 7 |
| Offside Front front brake binding |3.7.B.1| | 7 |
| Brake performance not tested (1.2.1 (g)) | 7 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Offside Rear Shock absorbers has a serious fluid leak | 7 |
| Upper Stop lamp not working |1.2.1b| | 7 |
| Exhaust system insecure (6.1.2 (a)) | 7 |