| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Registration plate issues | 4 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 2 |
| Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Registration plate lamp issues | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear brake drum contaminated by oil |3.5.1h| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Centre Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Centre Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Front shock absorber leaking oil |9.2.7b| | 1 |
| Nearside Front Steering damper leaking oil |2.2.C.1f| | 1 |
| Front shock absorber leaking oil |9.2.7b| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Front Brake pipe inadequately supported |3.6.B.1| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear reflector missing |1.5.1a| | 1 |
| Front suspension assembly has excessive free play in the pivot bearings |9.2.5d| | 1 |
| Steering damper damaged and unserviceable |2.2.C.1d| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Rear Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Nearside Rear Tie bar/rod has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Rear Tie bar/rod has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Headlamp aim does not move downwards when dipped |1.6.C5| | 1 |
| Offside Rear Front drive shaft coupling flexible rubber or fabric coupling unit breaking up |2.5.C.1d| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Rear Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 1 |
| Rear Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Centre Headlamp insecure |1.7.3| | 1 |
| Headlamp aim not tested |1.8.A.1c| | 1 |
| Nearside Brake cable insecure |3.5.1d| | 1 |
| Nearside Rear reflector not red in colour |1.5.1d| | 1 |
| Offside Rear reflector not red in colour |1.5.1d| | 1 |
| Front Headlamp insecure |1.7.3| | 1 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Front Road wheel spoke corroded |4.2.A.1b| | 1 |
| Front Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Centre Front position lamp|s| not working |1.1.A.3b| | 1 |
| Centre Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Mechanical brake component locking device missing |3.5.1l| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |