| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 507 |
| Headlamp aim out of alignment | 273 |
| Registration plate lamp issues | 205 |
| Brake pipe excessively corroded | 116 |
| Offside Stop lamp not working |1.2.1b| | 111 |
| Centre Stop lamp not working |1.2.1b| | 86 |
| Parking brake: efficiency below requirements |3.7.B.7| | 73 |
| Nearside Stop lamp not working |1.2.1b| | 69 |
| Registration plate issues | 68 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 59 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 51 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 49 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 47 |
| Rear parking brake recording little or no effort | 47 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 37 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 37 |
| Parking brake lever has no reserve travel |3.1.6b| | 36 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Rear Stop lamp not working |1.2.1b| | 33 |
| Nearside Rear Stop lamp not working |1.2.1b| | 32 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 32 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 31 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 30 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 29 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 27 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 24 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 24 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 24 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 23 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 23 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 23 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 19 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 19 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Rear brake binding | 17 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 17 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 16 |
| Brakes imbalanced across an axle | 16 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 16 |
| Emissions not tested (8.2.1.2 (d)) | 16 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 15 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Offside Front Position lamp not working |4.2.1 |a|| | 14 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 14 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 14 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 13 |
| Centre Rear Stop lamp not working |1.2.1b| | 13 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 12 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 11 |
| Battery insecure |1.9.1| | 11 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 10 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Offside Rear Shock absorbers has a serious fluid leak | 10 |
| Stop lamp not working |1.2.1b| | 10 |
| Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 10 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 10 |
| Upper Stop lamp not working |1.2.1b| | 10 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 10 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Nearside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 9 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Nearside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 9 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 9 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Front brake application uneven | 8 |
| Nearside Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 8 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 8 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 8 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 8 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 8 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 8 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 8 |
| Windscreen washer not working | 7 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced |4.1.4 |b|| | 7 |
| Offside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 7 |
| Rear fog lamp not working |1.3.2b| | 7 |
| 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| | 7 |
| Offside Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 7 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 7 |