| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4156 |
| Windscreen wiper does not clear the windscreen effectively | 4097 |
| Brake pipe excessively corroded | 2250 |
| Registration plate lamp issues | 1167 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 975 |
| Front brake disc in such a condition that it is seriously weakened | 934 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 866 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 862 |
| Brakes imbalanced across an axle | 527 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 453 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 353 |
| Hazard warning switch faulty |1.4.B.1d| | 350 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 328 |
| Windscreen washer not working | 276 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 272 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 267 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 260 |
| Registration plate issues | 257 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 255 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 243 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 235 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 234 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 210 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 208 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 201 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 187 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 181 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 174 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 173 |
| Offside Front Position lamp not working |4.2.1 |a|| | 173 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 171 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 171 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 167 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 167 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 166 |
| All direction indicators not working (4.4.1 (a) (ii)) | 166 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 162 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 160 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 158 |
| Front brake excessively fluctuating | 156 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 153 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 147 |
| Hazard warning lamps inoperative |1.4.B.1b| | 145 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 142 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 139 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 137 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 136 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 136 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 127 |
| Rear Exhaust system insecure (6.1.2 (a)) | 119 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 116 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 113 |
| Emissions not tested (8.2.1.2 (d)) | 108 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 104 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 104 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 98 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 97 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 96 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 92 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 90 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 88 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 83 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 83 |