| Most common failures | No# failures |
|---|
| Brakes imbalanced across an axle | 14 |
| Parking brake: efficiency below requirements |3.7.B.7| | 13 |
| Service brake: efficiency below requirements |3.7.B.7| | 12 |
| Service brake: efficiency below requirements |3.7.C.1a| | 11 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 10 |
| Nearside Stop lamp not working |1.2.1b| | 8 |
| Rear parking brake recording little or no effort | 8 |
| Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 6 |
| Offside Stop lamp not working |1.2.1b| | 6 |
| Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 5 |
| Nearside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b| | 4 |
| Nearside Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 4 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 4 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Brake hose excessively deteriorated | 3 |
| Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a| | 3 |
| Offside Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 3 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 3 |
| Offside Front front brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Fuel tank leaking |7.2.3| | 3 |
| Front brake application uneven | 3 |
| Rear brake application uneven | 3 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 3 |
| Nearside Front front brake recording little or no effort |3.7.B.5a| | 2 |
| Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Offside Semaphore indicator arm arm does not show an amber light to the rear |1.4.C.1b| | 2 |
| Registration plate issues | 2 |
| Nearside Semaphore indicator arm arm does not show an amber light to the front |1.4.C.1b| | 2 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Nearside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 2 |
| Headlamp aim out of alignment | 2 |
| Offside front brake recording little or no effort |3.7.B.5a| | 2 |
| Nearside Front Fuel system component leaking |7.2.3| | 2 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Driver`s seat insecure |6.2.A.1| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside front brake binding |3.7.B.1| | 2 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Offside Rear front brake recording little or no effort |3.7.B.5a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Front Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Registration plate lamp issues | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Nearside Front Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2| | 1 |
| Offside Front Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2| | 1 |
| Nearside Front Leaf spring has a deteriorated anchor pin rubber bush resulting in excessive movement |2.4.B.2| | 1 |
| Offside Front Leaf spring has a deteriorated anchor pin rubber bush resulting in excessive movement |2.4.B.2| | 1 |
| Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 1 |
| Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 1 |
| Direction indicators do not face the front |1.4.2b| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Nearside Front Leaf spring to axle securing bolt missing |2.4.B.7b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Direction indicators not in good working order |function impaired| |1.5.A1b| | 1 |
| Ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Headlamp does not operate immediately when selected on dipped beam |1.7.4a| | 1 |
| Front Service brake grabbing severely |3.7.C.2| | 1 |
| Brake hose damaged | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Offside Rear Leaf spring to axle securing bolt insecure |2.4.B.7b| | 1 |
| Offside Rear Shock absorber insecure |2.7.2b| | 1 |
| Front Fuel system component leaking |7.2.3| | 1 |
| Offside Semaphore indicator arm arm does not show an amber light to the front |1.4.C.1b| | 1 |
| Offside Intermediate drop arm insecure |2.2.B.1a| | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Windscreen washer control missing |8.2.1a| | 1 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Mechanical brake component has restricted free movement | 1 |
| Offside Front Track rod end loose |2.2.B.1d| | 1 |
| Nearside Rear Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Shock absorber missing |2.7.1b| | 1 |
| Offside Rear Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 1 |
| Steering system excessively tight |2.2.D.1| | 1 |
| Steering column top bearing excessively worn |2.1.2c| | 1 |
| Fuel system component leaking carburettor (6.1.3 (b) (i)) | 1 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Anti-roll bar locating pin locking device missing |2.4.G.3b| | 1 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Service brake is causing the steering wheel to severely pull one way |3.7.C.2| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Front Pre 1950 headlamp aimed so that it dazzles other road users |1.6.A1| | 1 |
| Centre Front Steering column top mounting bracket insecure |2.1.2d| | 1 |
| Nearside Rear Leaf spring anchor bracket loose |2.4.B.6a| | 1 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Front Brake clevis joint locking device missing |3.5.1l| | 1 |
| Offside Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Rear Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Steering wheel retaining device insecure |2.1.6| | 1 |
| Offside Rear Lower Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Offside Rear Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Nearside Service brake is causing the steering wheel to severely pull one way |3.7.C.2| | 1 |
| Offside Front Brake pipe leaking |3.6.A.1| | 1 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Front Service brake grabbing severely |3.7.C.2| | 1 |
| Dipswitch operation does not deflect all main beam headlamps to make them dipped beams |1.7.4b| | 1 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Brake hose leaking |3.6.A.1| | 1 |
| Offside Front Brake hose leaking |3.6.A.1| | 1 |
| Nearside Front Leaf spring shackle pin locking device missing |2.4.B.3b| | 1 |
| Braking system leaking |3.6.A.1| | 1 |
| Nearside Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Offside Rear Shock absorber detached |2.7.2b| | 1 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Front Shock absorber insecure |2.7.2b| | 1 |
| Nearside Front Headlamp aim not in a clean condition affecting light output |1.2.4a| | 1 |
| Nearside Front Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Offside Rear Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Nearside Front Steering locking device missing |2.2.C.1g| | 1 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Semaphore indicator arm arm does not show an amber light to the rear |1.4.C.1b| | 1 |
| Offside Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Service brake grabbing severely |3.7.C.2| | 1 |
| Offside Rear Road wheel spoke cracked |4.2.A.1b| | 1 |
| Offside Front Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Nearside Rear Service brake grabbing severely |3.7.C.2| | 1 |
| Offside Front Brake master cylinder/servo mounting prescribed area is fractured |3.6.C.3| | 1 |
| Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Rear brake binding | 1 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Front An item not tested |Manual| | 1 |
| Offside Front All position lamps not working |1.1.A.3b| | 1 |
| Offside Front Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 1 |
| Nearside Rear Leaf spring shackle bracket loose |2.4.B.6a| | 1 |
| Offside Rear Leaf spring shackle bracket loose |2.4.B.6a| | 1 |
| Nearside Front Semaphore indicator arm does not retract smoothly |1.4.C.1a| | 1 |
| Offside Front Semaphore indicator arm does not retract smoothly |1.4.C.1a| | 1 |
| Nearside Rear Leaf spring to axle securing nut insecure |2.4.B.7b| | 1 |
| Offside Rear Leaf spring to axle securing nut insecure |2.4.B.7b| | 1 |
| Semaphore indicator tell tale missing |1.4.C.2| | 1 |
| Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is fractured |2.4.A.3| | 1 |
| Offside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 1 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Nearside Front Shock absorber has an excessively worn shock absorber pivot |2.7.4| | 1 |
| Offside Rear Shock absorber has an excessively worn shock absorber pivot |2.7.4| | 1 |
| Nearside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Front coil spring repaired by welding |2.4.C.1c| | 1 |
| Offside Front coil spring repaired by welding |2.4.C.1c| | 1 |
| Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Offside Rear Leaf spring to axle securing nut missing |2.4.B.7b| | 1 |
| Nearside Rear Leaf spring to axle securing nut missing |2.4.B.7b| | 1 |
| Offside Front Steering locking device missing |2.2.C.1g| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |