| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4671 |
| Windscreen wiper does not clear the windscreen effectively | 4560 |
| Brake pipe excessively corroded | 2295 |
| Registration plate lamp issues | 1007 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 910 |
| Front brake disc in such a condition that it is seriously weakened | 844 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 839 |
| Brakes imbalanced across an axle | 617 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 593 |
| Registration plate issues | 519 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 474 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 441 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 391 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 382 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 237 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 232 |
| Offside Front Position lamp not working |4.2.1 |a|| | 231 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 228 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 228 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 221 |
| Hazard warning switch faulty |1.4.B.1d| | 217 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 216 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 215 |
| Front brake excessively fluctuating | 208 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 201 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 198 |
| Windscreen washer not working | 188 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 188 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 175 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 171 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 171 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 169 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 168 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 167 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 160 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 159 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 157 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 153 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 150 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 149 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 142 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 135 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 134 |
| Offside Stop lamp not working |1.2.1b| | 134 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 132 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 131 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 127 |
| Rear brake binding | 125 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 125 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 118 |
| Emissions not tested (8.2.1.2 (d)) | 115 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 111 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 110 |
| Nearside Stop lamp not working |1.2.1b| | 105 |
| Hazard warning lamps inoperative |1.4.B.1b| | 105 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 103 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 101 |
| All direction indicators not working (4.4.1 (a) (ii)) | 101 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 100 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 96 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 90 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 90 |
| Offside Front Macpherson strut corroded and seriously weakened (5.3.3 (b) (i)) | 90 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 87 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 87 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 87 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 86 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 83 |
| Parking brake: efficiency below requirements |3.7.B.7| | 81 |
| Anti-lock braking system warning lamp indicates an ABS fault | 80 |
| Rear Exhaust system insecure (6.1.2 (a)) | 79 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 77 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 77 |