| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 320 |
| Headlamp aim out of alignment | 274 |
| Registration plate lamp issues | 246 |
| Brake pipe excessively corroded | 120 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 72 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 49 |
| Registration plate issues | 47 |
| Rear brake binding | 45 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Rear brake disc in such a condition that it is seriously weakened | 40 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 39 |
| Brakes imbalanced across an axle | 37 |
| Nearside Stop lamp not working |1.2.1b| | 36 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 30 |
| Centre Stop lamp not working |1.2.1b| | 29 |
| Nearside Rear Shock absorbers has a serious fluid leak | 27 |
| Offside Stop lamp not working |1.2.1b| | 24 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 23 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 21 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 21 |
| Offside Rear Shock absorbers has a serious fluid leak | 20 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 20 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 19 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 17 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Parking brake: efficiency below requirements |3.7.B.7| | 15 |
| Anti-lock braking system warning lamp indicates an ABS fault | 15 |
| Stop lamp not working |1.2.1b| | 14 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 14 |
| Offside Front Position lamp not working |4.2.1 |a|| | 14 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 12 |
| Offside Rear Stop lamp not working |1.2.1b| | 12 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Parking brake lever has no reserve travel |3.1.6b| | 11 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Battery insecure |1.9.1| | 11 |
| Central Stop lamp not working |1.2.1b| | 11 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 11 |
| Windscreen washer not working | 10 |
| Rear brake application uneven | 10 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 9 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Front brake application uneven | 9 |
| Nearside Rear Stop lamp not working |1.2.1b| | 8 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 8 |
| Centre Rear Stop lamp not working |1.2.1b| | 8 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 8 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Front brake excessively fluctuating | 8 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 8 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 8 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Rear parking brake recording little or no effort | 7 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 6 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 6 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 6 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 5 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Offside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 5 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 5 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Rear fog lamp obscured more than 50% |1.3.2c| | 5 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 5 |
| Upper Stop lamp not working |1.2.1b| | 5 |
| rear parking |secondary| brakes imbalanced | 5 |