| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Registration plate lamp issues | 7 |
| Headlamp aim out of alignment | 6 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 6 |
| Parking brake efficiency below requirements |3.7.C.1b| | 4 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 2 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Front Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 1 |
| Nearside Obligatory mirror insecure |3.3 |b| |ii|| | 1 |
| Offside Obligatory mirror insecure |3.3 |b| |ii|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Offside Stop lamp|s| light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Centre Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear brake disc modified and seriously weakened |3.5.1n| | 1 |
| Centre Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Centre Headlamp incorrect colour |1.7.5b| | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Centre Headlamp insecure |1.7.3| | 1 |
| Nearside Front Upper Suspension arm pin or bush excessively worn both bushes |5.3.4 |a| |i|| | 1 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Parking brake lever ratchet mechanism is broken |3.1.5| | 1 |
| Rear brake caliper has restricted free movement |3.5.1k| | 1 |
| Rear Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Front Stop lamp not working |1.2.1b| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Nearside Front Upper Suspension arm synthetic bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Upper Suspension arm synthetic bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Inner Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Outer Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Inner Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Outer Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Upper Steering arm has relative movement at its fixings inner joint |2.2.B.1h| | 1 |
| Nearside Front Upper Steering arm has relative movement at its fixings inner joint |2.2.B.1h| | 1 |
| Offside Front Upper Suspension arm has excessive play in a ball joint outer |2.4.G.2| | 1 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 1 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 1 |
| Nearside Rear Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i)) | 1 |
| Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated (1.1.6 (d)) | 1 |
| Parking brake inoperative on one side both sides (1.4.1 (a)) | 1 |
| Rear Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i|| | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Axle swivel pins and bushes swivel pin and/or bush insecure Rear diff (5.1.2 (b) (ii)) | 1 |
| Axle swivel pins and bushes swivel pin and/or bush insecure Wheel alignment bolt missing (5.1.2 (b) (ii)) | 1 |
| Stop lamp(s) with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Rear All direction indicators not working both |4.4.1 |a| |ii|| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Offside Front Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Drive chain excessively worn (6.1.7 (c) (i)) | 1 |
| Stop lamp(s) not working when hand lever pressed (4.3.1 (a) (ii)) | 1 |
| Emissions not tested (8.2.1.2 (d)) | 1 |
| Obligatory mirror missing |8.1.1| | 1 |
| Central Front Lower Headlamp not working on main beam both separate headlamp main beam lamps flashing (4.1.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Obligatory mirror insecure (3.3 (b) (ii)) | 1 |
| Offside Front Upper Brake lever pivot has excessive wear or free play rear brake/parking brake lever on handlebars pivot pin excessively worn (1.1.1 (b)) | 1 |
| Brake performance not tested brakes not tested due to accelerator sticking open (1.2.1 (g)) | 1 |
| Nearside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Obligatory mirror missing |8.1.1| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Offside Front Upper Front suspension has excessive play in a upper wishbone bearing |2.5.B.1a| | 1 |
| Offside Front Brake pedal not releasing correctly and functionality of brakes affected Pedal Spring Missing |1.1.2 |b| |ii|| | 1 |
| Stop lamp(s) not working from front control (4.3.1 (a) (ii)) | 1 |
| Handlebar insecure (2.2.1 (d) (i)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 1 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Rear Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Front Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Front Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Rear Brake disc contaminated oil (1.1.14 (b)) | 1 |
| Nearside Front Steering locking device ineffective steerin arm locking nut (2.1.3 (d)) | 1 |
| Nearside Front Suspension arm pin or bush excessively worn inner bushes both (5.3.4 (a) (i)) | 1 |
| Offside Front Suspension arm pin or bush excessively worn inner bushes (5.3.4 (a) (i)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Drive chain excessively worn loose (6.1.7 (c) (i)) | 1 |