| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 49 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 46 |
| Headlamp aim out of alignment | 42 |
| Brake hose excessively deteriorated | 34 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 25 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Anti-lock braking system warning lamp indicates an ABS fault | 18 |
| Nearside Rear Shock absorbers has a serious fluid leak | 18 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 18 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 17 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Windscreen wiper does not clear the windscreen effectively | 15 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 15 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 14 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 12 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Offside Rear Shock absorbers has a serious fluid leak | 11 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 11 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 10 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 9 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 8 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 8 |
| Registration plate lamp issues | 8 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 7 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 6 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Front Shock absorbers has a serious fluid leak | 5 |
| Offside Front Shock absorbers has a serious fluid leak | 5 |
| Windscreen washer not working | 5 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 5 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 4 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 4 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 4 |
| Offside Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 4 |
| Registration plate issues | 4 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Brakes imbalanced across an axle | 4 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Nearside Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Exhaust emissions exceed manufacturers specified limit 0.7 (8.2.2.2 (a)) | 3 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 3 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 2 |
| Nearside Rear Subframe mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 2 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 2 |
| Offside Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 2 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 2 |
| Offside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 2 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 2 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Boot lid cannot be secured in the closed position (6.2.1 (e)) | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Offside Front Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 2 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b)) | 2 |
| Suspension system inoperative (5.3.5 (a)) | 2 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 2 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |