| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 9 |
| Rear Stop lamp not working |1.2.1b| | 4 |
| Nearside Rear reflector missing |1.5.1a| | 4 |
| Centre Front position lamp|s| not working |1.1.A.3b| | 4 |
| Centre Headlamp not working on dipped beam |1.7.5a| | 4 |
| Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Centre Headlamp not working on main beam |1.7.5a| | 3 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside Obligatory mirror missing |8.1.1| | 2 |
| Offside Obligatory mirror missing |8.1.1| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Steering headbearing has excessive free play |9.2.4| | 2 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 2 |
| Front Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Centre Stop lamp emits other than a steady red light |1.2.1e| | 2 |
| Nearside Inner Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Inner Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 2 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 2 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 2 |
| Parking brake efficiency below requirements |3.7.E.1| | 1 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt and nearside inner |2.2.C.1c| | 1 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Offside Rear Wheel fitment excessively worn between the wheel and hub spigot mounting |4.2.B.5| | 1 |
| Steering system lock to lock check stretches a brake hose |2.2.D.2b| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Upper Radius arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Offside Front Upper Radius arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Steering column top bearing excessively worn |2.1.2c| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Axle beam has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 1 |
| Offside Axle beam has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 1 |
| Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Steering locking device missing |2.2.C.1g| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Wheel bearing has excessive play off and nearside front |5.1.3 |a| |i|| | 1 |
| Suspension arm pin or bush excessively worn off and nearside front top arm inner bushes |5.3.4 |a| |i|| | 1 |
| Suspension arm ball joint excessively worn off and nearside front top |5.3.4 |a| |i|| | 1 |
| Service brake effort inadequate at a wheel both |1.2.1 |a| |i|| | 1 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 1 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Nearside Rear Steering locking device missing |2.2.C.1g| | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Offside Steering wheel in a condition that hampers proper control |2.1.1| | 1 |
| Brake pedal has insufficient reserve movement lever |3.3.A.5| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Centre Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Rear Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Rear Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Headlamp insecure |1.7.3| | 1 |
| Centre Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Rear Drive shaft which forms part of the suspension support bearing excessively worn |2.4.G.4d| | 1 |
| Nearside Rear Halfshaft bolt loose |4.2.B.3| | 1 |
| Offside Outer Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Inner Front Ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 1 |
| Offside Ball joint has excessive play |2.2.B.1f| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Nearside Front Front suspension assembly has excessive free play in the pivot bearings |9.2.5d| | 1 |
| Offside Front Front suspension assembly has excessive free play in the pivot bearings |9.2.5d| | 1 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Halfshaft nut loose |4.2.B.3| | 1 |
| Offside Track rod end loose |2.2.B.1d| | 1 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 1 |
| Centre Headlamp insecure |1.7.3| | 1 |
| Handlebar mounting clamp loose |9.2.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |9.2.2a| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Horn not working |1.6.2a| | 1 |
| Offside Front Parking brake lever missing |3.1.3a| | 1 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| engine mounting bracket fractured and likely to fail x2 |6.1.D.1b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Nearside Front Brake cable insecure |3.5.1d| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Rear position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 1 |
| Offside Rear Wheel insecure |4.2.A.1c| | 1 |
| Offside Steering system fouling |2.2.D.2a| | 1 |
| Centre Front Lower Body insecure and dangerous to other road users |6.1.B.1b| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Offside Front Road wheel fixing loose |5.2.1 |a| |i|| | 1 |
| Nearside Front Lower Suspension arm pin or bush excessively worn front |5.3.4 |a| |i|| | 1 |
| Steering column top bearing excessively worn |2.2.2 |b|| | 1 |
| Rear Upper Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Rear Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Front Headlamp insecure |1.7.3| | 1 |
| Steering column top bearing excessively worn bearing/bush (2.2.2 (b)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Nearside Front Road wheel fixing missing locking nut missing (5.2.1 (a) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Front Upper Suspension component ball joint likely to become detached (5.3.4 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator does not face the rear (4.4.3 (a)) | 1 |
| Offside Inner Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Offside Inner Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Body panel damaged and likely to cause injury (6.2.1 (a) (i)) | 1 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 1 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Drive shaft securing bolt missing both rear split pins missing (6.1.7 (a) (i)) | 1 |