| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 4184 |
| Headlamp aim out of alignment | 2684 |
| Registration plate lamp issues | 1599 |
| Brake pipe excessively corroded | 675 |
| Nearside Stop lamp not working |1.2.1b| | 568 |
| Brakes imbalanced across an axle | 465 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 429 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 419 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 397 |
| Offside Stop lamp not working |1.2.1b| | 389 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 381 |
| Parking brake lever has no reserve travel |3.1.6b| | 310 |
| Registration plate issues | 278 |
| Nearside Rear Stop lamp not working |1.2.1b| | 244 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 233 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 221 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 194 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 176 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 175 |
| Offside Rear Stop lamp not working |1.2.1b| | 169 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 162 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 155 |
| Parking brake: efficiency below requirements |3.7.B.7| | 155 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 152 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 149 |
| Windscreen washer not working | 148 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 145 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 137 |
| Offside Front Position lamp not working |4.2.1 |a|| | 132 |
| Front brake application uneven | 116 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 115 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 115 |
| Anti-lock braking system warning lamp indicates an ABS fault | 113 |
| Front brake disc in such a condition that it is seriously weakened | 113 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 109 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 103 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 99 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 96 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 91 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 90 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 82 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 79 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 79 |
| Rear parking brake recording little or no effort | 78 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 76 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 76 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 74 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 71 |
| Battery insecure |1.9.1| | 71 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 70 |
| Rear brake binding | 70 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 69 |
| Windscreen has damage | 69 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 68 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 66 |
| Rear brake disc in such a condition that it is seriously weakened | 66 |
| Windscreen wiper blade insecure | 65 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 63 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 62 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 60 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 59 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 54 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 54 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 53 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 53 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 52 |
| Front brake excessively fluctuating | 50 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 48 |