| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1111 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 650 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 611 |
| Windscreen wiper does not clear the windscreen effectively | 512 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 293 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 286 |
| Registration plate lamp issues | 263 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 229 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 218 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 202 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 192 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 185 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 182 |
| Windscreen washer not working | 182 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 177 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 164 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 162 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 158 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 146 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 143 |
| Exhaust emissions exceed default limit of 0.7m-1 (8.2.2.2 (b)) | 133 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 124 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 124 |
| Registration plate issues | 111 |
| Brakes imbalanced across an axle | 106 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 103 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 102 |
| Horn not working (7.7 (a)) | 101 |
| Horn not working (7.7 (a) (ii)) | 88 |
| Offside Rear Shock absorbers has a serious fluid leak | 79 |
| Nearside Rear Shock absorbers has a serious fluid leak | 74 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 69 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 66 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 63 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 61 |
| Brake pedal anti-slip provision missing |1.1.2 |c|| | 53 |
| Front brake disc in such a condition that it is seriously weakened | 50 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 48 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 47 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 45 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 43 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 42 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 41 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 41 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 39 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 38 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 36 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 36 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 36 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 36 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 34 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 33 |
| Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii)) | 28 |
| Offside Front Upper Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 27 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 27 |
| Offside Front Shock absorbers has a serious fluid leak | 26 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 24 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 24 |
| Anti-lock braking system warning lamp indicates an ABS fault | 24 |
| Emissions not tested (8.2.2.2 (e)) | 24 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 23 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 23 |
| Horn sound not in accordance with requirements (7.7 (c)) | 23 |
| Horn not working |7.7 |a| |ii|| | 22 |
| Offside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 22 |