| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 896 |
| Registration plate issues | 251 |
| Brake pipe excessively corroded | 147 |
| Windscreen wiper does not clear the windscreen effectively | 98 |
| Registration plate lamp issues | 72 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 58 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 39 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 24 |
| Rear brake disc in such a condition that it is seriously weakened | 23 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 22 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 21 |
| Nearside Headlamp cleaning device inoperative |1.7.2| | 20 |
| Nearside Front Shock absorbers has a serious fluid leak | 19 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 17 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Windscreen has damage | 16 |
| Nearside Rear Shock absorbers has a serious fluid leak | 16 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 16 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 15 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 14 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 14 |
| Offside Rear coil spring broken |2.4.C.1a| | 14 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Offside Front Shock absorbers has a serious fluid leak | 12 |
| Brakes imbalanced across an axle | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 12 |
| Offside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 12 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 10 |
| Offside Rear Shock absorbers has a serious fluid leak | 10 |
| Nearside Rear coil spring broken |2.4.C.1a| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 9 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 9 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 9 |
| Headlamp cleaning device inoperative |1.7.2| | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Horn not working |1.6.2a| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Offside Stop lamp not working |1.2.1b| | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 8 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 8 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 8 |
| Front Headlamp cleaning device inoperative |1.7.2| | 7 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 7 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 7 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 7 |
| Windscreen washer not working | 7 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 7 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 7 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 7 |