| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 585 |
| Registration plate lamp issues | 452 |
| Headlamp aim out of alignment | 324 |
| Brake pipe excessively corroded | 194 |
| Offside Stop lamp not working |1.2.1b| | 139 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 121 |
| Parking brake: efficiency below requirements |3.7.B.7| | 110 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 108 |
| Rear parking brake recording little or no effort | 94 |
| Centre Stop lamp not working |1.2.1b| | 92 |
| Nearside Stop lamp not working |1.2.1b| | 90 |
| Registration plate issues | 89 |
| Brakes imbalanced across an axle | 81 |
| Offside Rear Stop lamp not working |1.2.1b| | 62 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 60 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 52 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 51 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 51 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 46 |
| Parking brake lever has no reserve travel |3.1.6b| | 45 |
| Nearside Rear Stop lamp not working |1.2.1b| | 44 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 42 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 41 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 38 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 38 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 37 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 33 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 33 |
| Anti-lock braking system warning lamp indicates an ABS fault | 30 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 29 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 26 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 25 |
| Brake hose excessively deteriorated | 25 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 24 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 22 |
| Rear brake binding | 20 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 20 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Centre Rear Stop lamp not working |1.2.1b| | 20 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 19 |
| Front brake application uneven | 19 |
| Offside Front Position lamp not working |4.2.1 |a|| | 19 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 18 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Windscreen washer not working | 17 |
| Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 17 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 16 |
| Nearside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 16 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 16 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 16 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 16 |
| Front brake disc in such a condition that it is seriously weakened | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 16 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 16 |
| Windscreen wiper blade insecure | 16 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 15 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 14 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 14 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 13 |
| Battery insecure |1.9.1| | 13 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Front brake excessively fluctuating | 13 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 12 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 12 |
| Stop lamp not working |1.2.1b| | 12 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Rear fog lamp not working |1.3.2b| | 11 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Nearside Rear Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i)) | 11 |
| Offside Rear Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i)) | 11 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Central Stop lamp not working |1.2.1b| | 10 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 10 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 10 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 10 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 10 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 10 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Windscreen has damage | 9 |
| Nearside Rear Shock absorbers has a serious fluid leak | 9 |
| Nearside Headlamp not working on main beam |1.7.5a| | 9 |
| Offside Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 9 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Steering rack insecure |2.2.B.1a| | 9 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |