| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 3270 |
| Windscreen wiper does not clear the windscreen effectively | 3206 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 974 |
| Front brake disc in such a condition that it is seriously weakened | 734 |
| Registration plate lamp issues | 648 |
| Brake pipe excessively corroded | 452 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 415 |
| Brakes imbalanced across an axle | 356 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 335 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 330 |
| Hazard warning switch faulty |1.4.B.1d| | 316 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 312 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 282 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 280 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 277 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 269 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 232 |
| Registration plate issues | 223 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 221 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 209 |
| Windscreen washer not working | 208 |
| All direction indicators not working (4.4.1 (a) (ii)) | 207 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 203 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 190 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 183 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 182 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 171 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 168 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 157 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 154 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 149 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 147 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 147 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 146 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 138 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 137 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 136 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 132 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 126 |
| Hazard warning lamps inoperative |1.4.B.1b| | 124 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 118 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 118 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 115 |
| Front brake excessively fluctuating | 112 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 105 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 102 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 97 |
| Rear Exhaust system insecure (6.1.2 (a)) | 94 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 94 |
| Emissions not tested (8.2.1.2 (d)) | 94 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 93 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 92 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 91 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 88 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 83 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 78 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 70 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 70 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 69 |