| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2223 |
| Windscreen wiper does not clear the windscreen effectively | 2176 |
| Front brake disc in such a condition that it is seriously weakened | 581 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 396 |
| Registration plate lamp issues | 359 |
| Brakes imbalanced across an axle | 296 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 252 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 251 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 219 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 213 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 178 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 177 |
| Windscreen washer not working | 169 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 155 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 154 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 153 |
| Registration plate issues | 147 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 144 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 136 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 135 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 128 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 114 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 109 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 102 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 99 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 93 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 90 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 88 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 82 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 74 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 70 |
| Anti-lock braking system warning lamp indicates an ABS fault | 68 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 65 |
| Front brake excessively fluctuating | 64 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 62 |
| Brake pipe excessively corroded | 62 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 61 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 59 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 59 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 56 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 56 |
| Offside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 53 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 50 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 49 |
| All direction indicators not working (4.4.1 (a) (ii)) | 47 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 46 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 46 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 45 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 45 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 44 |
| Nearside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 43 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 43 |
| Rear Exhaust system insecure (6.1.2 (a)) | 42 |
| Offside Rear Shock absorbers has a serious fluid leak | 41 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 40 |
| Emissions not tested (8.2.1.2 (d)) | 36 |