| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Parking brake: efficiency below requirements |3.7.B.7| | 24 |
| Registration plate lamp issues | 20 |
| Brakes imbalanced across an axle | 12 |
| Rear parking brake recording little or no effort | 11 |
| Horn not working |1.6.2a| | 10 |
| Windscreen wiper does not clear the windscreen effectively | 9 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 7 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Service brake: efficiency below requirements |3.7.B.7| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Steering column movement between the shaft and steering wheel |2.1.2b| | 5 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Brake hose excessively deteriorated | 4 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Rear brake binding | 3 |
| Brake performance not tested |3.7.A.1| | 3 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 3 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 3 |
| Registration plate issues | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Rear Braking system leaking |3.6.A.1| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Fuel pipe leaking |7.2.1a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Front Anti-roll bar attachment bracket/mounting insecure |2.4.G.1| | 2 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 2 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Brake hose damaged | 2 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 2 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Nearside Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Offside front brake binding |3.7.B.1| | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Windscreen wiper blade insecure | 2 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| All position lamps not working |1.1.A.3b| | 2 |
| Nearside Front Statutory seat belt missing |5.1.1| | 2 |
| Offside Front Statutory seat belt missing |5.1.1| | 2 |
| Rear brake application uneven | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Offside Rear Road wheel spoke missing |4.2.A.1b| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front position lamp|s| not working |1.1.A.3b| | 1 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Bootlid cannot be secured in the closed position |6.4.1| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Headlamp not in good working order |not working| |1.2.4a| | 1 |
| Offside Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Lower Steering column flexible coupling insecure |2.1.5| | 1 |
| Nearside Front Lower Steering pivot point has excessive play |2.2.B.1g| | 1 |
| Nearside Rear Road wheel spoke cracked |4.2.A.1b| | 1 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Front Front wheel spindle securing nut|s| loose retighten |2.3.3a| | 1 |
| Brake pipe excessively corroded | 1 |
| Offside Inner Drive shaft uj which forms part of the suspension has excessive play in a universal joint |2.4.G.4b| | 1 |
| Nearside Front Brake component leaking fluid |3.2.B4| | 1 |
| Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Steering column flexible coupling has excessive play |2.1.5| | 1 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 1 |
| Fuel cap/sealing device does not fasten securely by positive means |7.2.4b| | 1 |
| Fuel system component leaking |7.2.3| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front An item not tested |Manual| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Offside Front brake disc excessively pitted |3.5.1h| | 1 |
| Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 1 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Steering rack gaiter split |2.2.D.2d| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake imbalanced across an axle |3.7.B.5b| | 1 |
| Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3| | 1 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Rear Brake hose excessively damaged |3.6.B.4d| | 1 |
| Offside Rear Brake hose excessively damaged |3.6.B.4d| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front Headlamp not in good working order |not working| |1.2.4a| | 1 |
| Offside Front Headlamp not in good working order |not working| |1.2.4a| | 1 |
| Nearside Front Lower Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Centre Front Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear Lower Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Steering rack gaiter insecure |2.2.D.2d| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside Front Brake hose bulging under pressure |3.6.B.3| | 1 |
| Offside Front Brake hose bulging under pressure |3.6.B.3| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Track rod end loose |2.2.B.1d| | 1 |
| Steering wheel weakened by cracks |2.1.1| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake hose has insufficient room to move | 1 |
| Nearside front brake juddering severely |3.7.A.2b| | 1 |
| Offside front brake juddering severely |3.7.A.2b| | 1 |
| Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Front Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Rear Body or chassis has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear Body or chassis has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Vehicle structure has a modification which adversely affects braking or steering |6.1.A.1| | 1 |
| Body has a sharp edge caused by corrosion |6.1.C.1| | 1 |
| Nearside Rear Vehicle structure has an inadequate repair which adversely affects braking or steering |6.1.A.1| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Hydraulic brake calliper inadequately mounted and braking performance affected insecure (1.1.16 (c) (ii)) | 1 |
| Offside Front Hydraulic brake calliper inadequately mounted and braking performance affected insecure (1.1.16 (c) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Service brake effort inadequate at a wheel all wheel brake efforts inadequate (1.2.1 (a) (i)) | 1 |
| Nearside Front Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced out rigger to body mounting (6.1.1 (c) (i)) | 1 |
| Offside Front Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced out rigger to body mounting (6.1.1 (c) (i)) | 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 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 1 |
| Nearside Vehicle structure has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Chain guard fouling another component |6.2.1c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Exhaust engine idle speed too high |7.3.A.2a| | 1 |
| Nearside Front Upper Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 1 |
| Parking brake lever pivot worn to the extent that the brake may inadvertently release when knocked to side |1.1.6 |b| |ii|| | 1 |
| Offside Rear Lower Shock absorbers has an excessively worn bush |5.3.2 |c|| | 1 |
| Nearside Front Outer Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting body mounting bracket corroded |6.2.2 |d| |i|| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Exhaust has a part missing |7.1.1a| | 1 |
| Horn control missing |1.6.1| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Offside Front front brake binding |3.7.B.1| | 1 |
| Nearside Front front brake binding |3.7.B.1| | 1 |
| Exhaust mounting missing |7.1.1b| | 1 |
| Nearside Rear Suspension component mounting prescribed area is fractured |2.4.A.3| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Direction indicators not working |1.4.A.2c| | 1 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Front Horn not working |1.6.2a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Front Side repeater not working |1.4.A.2c| | 1 |
| Stop lamp not working both lamps |1.2.1b| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 1 |
| Nearside Front Upper Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Upper Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement wish bone arm inner bushes |2.4.G.2| | 1 |
| Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement wish bone inner bushes |2.4.G.2| | 1 |
| Nearside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Steering wheel weakened by fractures |2.1.1| | 1 |
| Nearside Rear Outer Suspension component mounting prescribed area is excessively corroded mounting arm bracket |2.4.A.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Nearside Rear Brake hose bulging under pressure |3.6.B.3| | 1 |
| Offside Rear Brake hose bulging under pressure |3.6.B.3| | 1 |
| Steering column top bearing excessively worn |2.1.2c| | 1 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear reflector not red in colour |1.5.1d| | 1 |
| Offside Rear reflector excessively damaged so that its function is impaired |1.5.1c| | 1 |
| Nearside front brake binding |3.7.B.1| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Headlamp aim not tested |1.8.A.1c| | 1 |
| Offside Front Headlamp aim not tested |1.8.A.1c| | 1 |
| Main beam `tell-tale` not working |1.7.4c| | 1 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Handlebar handgrip missing |2.1.1c| | 1 |