| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 2473 |
| Headlamp aim out of alignment | 2199 |
| Registration plate lamp issues | 1664 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 397 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 385 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 383 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 355 |
| Brake pipe excessively corroded | 289 |
| Nearside Stop lamp not working |1.2.1b| | 267 |
| Parking brake lever has no reserve travel |3.1.6b| | 255 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 221 |
| Offside Stop lamp not working |1.2.1b| | 220 |
| Registration plate issues | 216 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 202 |
| Brakes imbalanced across an axle | 196 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 183 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 176 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 146 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 136 |
| Offside Front Position lamp not working |4.2.1 |a|| | 126 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 123 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 121 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 112 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 111 |
| Nearside Rear Stop lamp not working |1.2.1b| | 111 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 111 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 107 |
| Parking brake: efficiency below requirements |3.7.B.7| | 107 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 94 |
| Offside Rear Stop lamp not working |1.2.1b| | 91 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 90 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 88 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 87 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 79 |
| Fuel tank leaking (6.1.3 (b) (i)) | 76 |
| Front brake disc in such a condition that it is seriously weakened | 76 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 71 |
| Windscreen washer not working | 69 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 68 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 64 |
| Fuel tank leaking |7.2.3| | 62 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 60 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 60 |
| Horn not working |1.6.2a| | 56 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 51 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 51 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 51 |
| Windscreen has damage | 48 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 48 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 48 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 48 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 46 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Front brake application uneven | 43 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 43 |
| Horn not working (7.7 (a) (ii)) | 43 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 43 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 43 |
| Anti-lock braking system warning lamp indicates an ABS fault | 42 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 41 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 40 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 39 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 39 |
| Rear brake disc in such a condition that it is seriously weakened | 39 |
| Battery insecure |1.9.1| | 39 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 38 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 37 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 37 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 36 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 35 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 35 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 34 |
| Rear brake binding | 34 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 34 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 33 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 33 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 33 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 32 |
| Nearside Front Shock absorbers has a serious fluid leak | 32 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 32 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 31 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 31 |
| Fuel tank leaking |6.1.3 |b| |i|| | 31 |