| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 467 |
| Headlamp aim out of alignment | 282 |
| Registration plate lamp issues | 203 |
| Brake pipe excessively corroded | 158 |
| Brakes imbalanced across an axle | 68 |
| Anti-lock braking system warning lamp indicates an ABS fault | 58 |
| Offside Stop lamp not working |1.2.1b| | 57 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 54 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 46 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Rear brake disc in such a condition that it is seriously weakened | 42 |
| Registration plate issues | 41 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 40 |
| Nearside Stop lamp not working |1.2.1b| | 39 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 33 |
| Offside Rear Stop lamp not working |1.2.1b| | 33 |
| Windscreen washer not working | 31 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 29 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 29 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 27 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 27 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Rear brake binding | 24 |
| Front brake disc in such a condition that it is seriously weakened | 23 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 23 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 21 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 21 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 21 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 20 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 20 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 19 |
| Parking brake: efficiency below requirements |3.7.B.7| | 19 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Rear parking brake recording little or no effort | 16 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 16 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Offside Rear Shock absorbers has a serious fluid leak | 13 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 13 |
| Brake hose excessively deteriorated | 13 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Offside Front Position lamp not working |4.2.1 |a|| | 12 |
| Battery insecure |1.9.1| | 11 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 11 |
| Nearside Rear Stop lamp not working |1.2.1b| | 11 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 10 |
| Rear brake application uneven | 10 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 10 |
| Centre Stop lamp not working |1.2.1b| | 9 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Nearside Rear Shock absorbers has a serious fluid leak | 9 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 8 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 7 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 7 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 7 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside front brake binding |3.7.B.1| | 6 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Offside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 6 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Rear Seat belt retracting mechanism defective (7.1.2 (e)) | 6 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 6 |
| Rear Mechanical brake component has restricted free movement | 6 |
| Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |