| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 3536 |
| Headlamp aim out of alignment | 3011 |
| Registration plate lamp issues | 2598 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 560 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 538 |
| Brake pipe excessively corroded | 456 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 445 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 439 |
| Nearside Stop lamp not working |1.2.1b| | 416 |
| Parking brake lever has no reserve travel |3.1.6b| | 404 |
| Registration plate issues | 366 |
| Offside Stop lamp not working |1.2.1b| | 325 |
| Brakes imbalanced across an axle | 317 |
| Parking brake: efficiency below requirements |3.7.B.7| | 252 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 235 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 218 |
| Nearside Rear Stop lamp not working |1.2.1b| | 183 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 173 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 171 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 160 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 156 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 156 |
| Offside Front Position lamp not working |4.2.1 |a|| | 153 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 152 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 148 |
| Offside Rear Stop lamp not working |1.2.1b| | 139 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 138 |
| Front brake disc in such a condition that it is seriously weakened | 133 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 133 |
| Windscreen washer not working | 122 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 121 |
| Fuel tank leaking |7.2.3| | 121 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 118 |
| Horn not working |1.6.2a| | 115 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 111 |
| Rear parking brake recording little or no effort | 109 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 101 |
| Battery insecure |1.9.1| | 80 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 78 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 78 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 76 |
| Rear brake binding | 74 |
| Rear brake disc in such a condition that it is seriously weakened | 73 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 73 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 72 |
| Front brake excessively fluctuating | 70 |
| Front brake application uneven | 69 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 69 |
| Horn not working (7.7 (a) (ii)) | 68 |
| Fuel tank leaking (6.1.3 (b) (i)) | 66 |
| Anti-lock braking system warning lamp indicates an ABS fault | 65 |
| Windscreen has damage | 64 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 62 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 62 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 61 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 61 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 60 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 59 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 59 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 58 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 54 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 51 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 50 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 49 |
| Windscreen wiper blade insecure | 49 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 45 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 44 |
| Horn not working |7.7 |a| |ii|| | 44 |
| Rear fog lamp not working |1.3.2b| | 43 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 43 |