| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 5917 |
| Headlamp aim out of alignment | 5357 |
| Brake pipe excessively corroded | 4134 |
| Registration plate lamp issues | 3864 |
| Brakes imbalanced across an axle | 1220 |
| Front brake disc in such a condition that it is seriously weakened | 1114 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1088 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 980 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 963 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 892 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 740 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 603 |
| Rear brake binding | 566 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 426 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 368 |
| Registration plate issues | 364 |
| Windscreen washer not working | 335 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 304 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 276 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 255 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 248 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 246 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 242 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 240 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 235 |
| Front brake excessively fluctuating | 228 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 227 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 213 |
| Parking brake: efficiency below requirements |3.7.B.7| | 211 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 208 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 206 |
| Emissions not tested (8.2.1.2 (d)) | 206 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 202 |
| Offside Front Position lamp not working |4.2.1 |a|| | 191 |
| Offside Stop lamp not working |1.2.1b| | 191 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 189 |
| Offside Front Macpherson strut corroded and seriously weakened (5.3.3 (b) (i)) | 189 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 189 |
| Nearside Stop lamp not working |1.2.1b| | 181 |
| Hazard warning switch faulty |1.4.B.1d| | 181 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 173 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 167 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 165 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 164 |
| Rear parking brake recording little or no effort | 154 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 153 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 150 |
| Rear Exhaust system not adequately supported |7.1.1| | 149 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 148 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 137 |
| Anti-lock braking system warning lamp indicates an ABS fault | 134 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 134 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 131 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 131 |
| Front brake application uneven | 126 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 123 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 118 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 118 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 115 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 114 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 113 |