| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Windscreen wiper does not clear the windscreen effectively | 19 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 6 |
| Registration plate lamp issues | 3 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 2 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 2 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Front Upper Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Front Upper Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Rear Reversing lamp inoperative (4.6.1 (a)) | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Brakes imbalanced across an axle | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Reversing lamp inoperative (4.6.1 (a)) | 1 |
| Nearside Front Outline marker lamp not working |4.2.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Shock absorbers has a serious fluid leak | 1 |
| Electrical wiring insecure and in contact with sharp edges alarm (4.11 (a) (ii)) | 1 |
| Central Rear Upper Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working mirror |4.4.1 |a| |ii|| | 1 |
| Nearside Front Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 1 |
| Supplementary restraint system warning lamp indicates a fault air bag light on (7.1.6 (a)) | 1 |
| Trailer electrical socket (13 pin) not operating the trailer lamps as intended (4.10 (c) (i)) | 1 |
| Power steering component leaking (2.1.5 (a)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator not working (1.4.A.2c) | 1 |
| Offside Rear Direction indicator not working (1.4.A.2c) | 1 |
| Rear fog lamp not working (1.3.2b) | 1 |
| Nearside Rear position lamp(s) not working (1.1.A.3b) | 1 |
| Offside Rear position lamp(s) not working (1.1.A.3b) | 1 |
| Nearside Stop lamp not working (1.2.1b) | 1 |
| Offside Stop lamp not working (1.2.1b) | 1 |
| Central Stop lamp not working (1.2.1b) | 1 |