| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6 |
| Registration plate lamp issues | 5 |
| Parking brake lever has no reserve travel |3.1.6b| | 5 |
| Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Stop lamp not working |1.2.1b| | 4 |
| Horn not working |1.6.2a| | 4 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 4 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 3 |
| Brake performance not tested |3.7.A.1| | 3 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Service brake: efficiency below requirements |3.7.C.1a| | 3 |
| Indicator tell tale missing |1.4.A.2a| | 3 |
| Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Offside Rear Stop lamp not working |1.2.1b| | 3 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Rear parking brake recording little or no effort | 3 |
| Nearside Rear reflector missing |1.5.1a| | 3 |
| Offside Rear reflector missing |1.5.1a| | 3 |
| Direction indicators not in good working order |function impaired| |1.5.A1b| | 2 |
| Rear brake binding | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Steering headbearing has excessive free play |9.2.4| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Rear reflector missing |1.5.1a| | 2 |
| Brake lever has inadequate reserve travel |9.3.1f| | 2 |
| Hazard warning lamps inoperative |1.4.B.1b| | 2 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Offside Rear Braking system leaking |3.6.A.1| | 2 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Parking brake efficiency below requirements |3.7.C.1b| | 2 |
| Nearside Obligatory mirror missing |8.1.1| | 2 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 2 |
| Brakes imbalanced across an axle | 2 |
| Parking brake lever releases when knocked |3.1.6a| | 1 |
| Nearside Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Hazard warning switch faulty |1.4.B.1d| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear |3.5.1f| | 1 |
| Nearside Front Upper Direction indicators not working |1.4.A.2c| | 1 |
| Front Upper Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear Upper Direction indicators not working |1.4.A.2c| | 1 |
| Offside Rear Upper Direction indicators not working |1.4.A.2c| | 1 |
| Centre Front Upper Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Nearside Front Upper Obligatory mirror missing |8.1.1| | 1 |
| Offside Front Upper Obligatory mirror missing |8.1.1| | 1 |
| Nearside Indicator switch faulty |1.4.A.1| | 1 |
| Nearside Stop lamp has less than 50% of the light sources illuminating |1.2.1b| | 1 |
| Offside Stop lamp has less than 50% of the light sources illuminating |1.2.1b| | 1 |
| Lower Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Offside Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Nearside Rear position lamp|s| obviously incorrectly positioned |1.1.A.3a| | 1 |
| Offside Rear position lamp|s| obviously incorrectly positioned |1.1.A.3a| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Brake hose damaged | 1 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Front Suspension has inadequate clearance with the bump stop |2.4.A.1a| | 1 |
| Registration plate issues | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Mechanical brake component has restricted free movement | 1 |
| All position lamps not working with ignition off |1.1.A.3b| | 1 |
| Offside Parking brake efficiency below requirements zero parkbrake effort |3.7.B.7| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Front Stop lamp not working |1.2.1b| | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Fuel tank leaking |7.2.3| | 1 |
| Rear Brake clevis joint excessively worn and seriously weakened |3.5.1e| | 1 |
| Nearside Front Braking system leaking |3.6.A.1| | 1 |
| Centre Front position lamp|s| not working |1.1.A.3b| | 1 |
| Towbar component insecure |6.6.1| | 1 |
| Offside Direction indicator not working |1.4.A.2c| | 1 |
| Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Offside Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Direction indicators adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Fuel system component leaking |7.2.3| | 1 |
| Nearside Rear Road wheel distorted |4.2.A.1a| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| 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 |
| Offside Front Fluid suspension unit leaking |2.4.D.2| | 1 |
| Offside Front brake disc contaminated by oil |3.5.1h| | 1 |
| Offside Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Centre Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Centre front brake binding |3.7.B.1| | 1 |
| Offside Tie bar/rod attachment bracket/mounting bolt missing |2.4.G.1| | 1 |
| Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Rear Upper Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Rear Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Rear Body has excessive displacement which may lead to loss of vehicle control |6.1.B.1a| | 1 |
| Rear brake caliper securing device loose |3.5.1j| | 1 |
| Rear Steering rack gaiter insecure |2.2.D.2d| | 1 |
| Centre Steering lock stop fractured and unserviceable |2.2.C.1d| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Offside Rear Brake pipe fouled by moving parts |3.6.B.2a| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Centre Front Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 1 |
| Centre Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Brake hose has insufficient room to move | 1 |
| Stop lamp|s| not working From front brake lever |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Offside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Fuel tank leaking From Tap |6.1.3 |b| |i|| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Headlamp not working on main beam |1.7.5a| | 1 |
| Rear Front position lamp|s| not working |1.1.A.3b| | 1 |
| Stop lamp not working From rear brake pedal |1.2.1b| | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Stop lamp(s) not working From front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Stop lamp missing |1.2.1a| | 1 |
| Offside Stop lamp missing |1.2.1a| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Parking brake inoperative on one side both (1.4.1 (a)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Fuel hose leaking under tank |7.2.3| | 1 |
| Nearside Front brake disc contaminated by grease |3.5.1h| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Nearside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Parking brake lever is located so that it cannot be satisfactorily operated from the driver`s seat |3.1.3c| | 1 |
| Front Wheel insecure |4.2.A.1c| | 1 |
| Front All position lamps not working |1.1.A.3b| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Rear Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Headlamp aim not tested |1.8.A.1c| | 1 |
| Parking brake lever ratchet mechanism is broken |3.1.5| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Fuel hose insecure |7.2.1| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Shock absorbers has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Rear Direction indicator has less than 50% of the light sources illuminating |1.4.A.2c| | 1 |
| Front Road wheel spoke excessively loose |4.2.A.1b| | 1 |
| Front brake disc locking device insecure |3.5.1l| | 1 |
| Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Nearside Front brake disc contaminated by oil |3.5.1h| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Offside Rear Wheel nut|s| loose |4.2.A.1e| | 1 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 1 |