| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 111 |
| Headlamp aim out of alignment | 106 |
| Windscreen wiper does not clear the windscreen effectively | 89 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 33 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 24 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 21 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 14 |
| Nearside Stop lamp not working |1.2.1b| | 13 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Front Shock absorbers has a serious fluid leak | 11 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Front Shock absorbers has a serious fluid leak | 11 |
| Brake hose excessively deteriorated | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Windscreen washer not working | 9 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 8 |
| Offside Stop lamp not working |1.2.1b| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Registration plate issues | 7 |
| Front brake disc in such a condition that it is seriously weakened | 7 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 6 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Nearside Rear fog lamp emits a light other than red |1.3.2e| | 5 |
| Offside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Brake pipe excessively corroded | 5 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Front Position lamp not working |4.2.1 |a|| | 5 |
| Battery insecure |1.9.1| | 5 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 4 |
| Front Headlamp cleaning device inoperative |1.7.2| | 4 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Rear parking brake recording little or no effort | 4 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 4 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 4 |
| Nearside Headlamp cleaning device inoperative |1.7.2| | 4 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 4 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Rear fog lamp not working |1.3.2b| | 3 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 3 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 3 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 3 |
| Windscreen has damage | 3 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 3 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 3 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 3 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Fuel system component leaking |7.2.3| | 2 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 2 |
| Rear brake binding | 2 |
| Brakes imbalanced across an axle | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 2 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 2 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 2 |
| Nearside Rear Shock absorbers has a serious fluid leak | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2 |
| Offside Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen |3.5 |a|| | 2 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Offside Rear Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 2 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 2 |
| Front Bumper likely to become detached (6.1.4 (a) (ii)) | 2 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 2 |