| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 76 |
| Registration plate lamp issues | 30 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 27 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 23 |
| Parking brake: efficiency below requirements |3.7.B.7| | 22 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 9 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 8 |
| Rear parking brake recording little or no effort | 7 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Registration plate issues | 6 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Stop lamp not working |1.2.1b| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Rear Direction indicator insecure |1.4.A.2b| | 3 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 3 |
| Rear reflector missing |1.5.1a| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Hazard warning switch faulty |1.4.B.1d| | 3 |
| Rear brake binding | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Hazard warning lamps inoperative |1.4.B.1b| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Service brake excessively fluctuating |1.2.1 |e|| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Parking |secondary brake| on a single line braking system has no recorded effort at a wheel |1.3.1 |a| |ii|| | 2 |
| Nearside Rear Shock absorbers has a serious fluid leak | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 2 |
| Parking brake lever inoperative (1.1.6 (d)) | 2 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front brake excessively fluctuating | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |