| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 12 |
| Headlamp aim out of alignment | 12 |
| Rear brake binding | 8 |
| Brakes imbalanced across an axle | 8 |
| Registration plate lamp issues | 6 |
| Horn not working |1.6.2a| | 6 |
| Windscreen wiper does not clear the windscreen effectively | 5 |
| Nearside Front front brake binding |3.7.B.1| | 5 |
| Brake hose has insufficient room to move | 5 |
| Nearside Front Wheel insecure |4.2.A.1c| | 4 |
| Fuel pipe leaking |7.2.3| | 4 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Offside Stop lamp not working |1.2.1b| | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Offside Front Direction indicator not working |1.4.A.2c| | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| Direction indicators not working |1.4.A.2c| | 3 |
| All position lamps not working |1.1.A.3b| | 3 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Front Braking system leaking |3.6.A.1| | 3 |
| Fuel system component leaking |7.2.3| | 2 |
| Nearside Rear Wheel insecure |4.2.A.1c| | 2 |
| Offside Rear Wheel insecure |4.2.A.1c| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Offside Rear reflector missing |1.5.1a| | 2 |
| Nearside Front Front suspension retaining device missing |2.5.A.4| | 2 |
| Offside Front Front suspension retaining device missing |2.5.A.4| | 2 |
| Offside Front front brake binding |3.7.B.1| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Braking system leaking |3.6.A.1| | 2 |
| Rear reflector missing |1.5.1a| | 2 |
| Nearside front brake binding |3.7.B.1| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b| | 2 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 2 |
| Rear brake application uneven | 2 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Horn not working |1.6.2a| | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Upper Fuel pipe leaking |7.2.3| | 1 |
| Offside Front Steering box insecure |2.2.B.1a| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Windscreen washer control missing |8.2.1a| | 1 |
| Horn control missing |1.6.1| | 1 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 1 |
| Mechanical brake component locking device insecure |3.5.1l| | 1 |
| Steering wheel locking device insecure |2.1.6| | 1 |
| Nearside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Nearside Front Upper Suspension arm locating pin locking device missing |2.4.G.3b| | 1 |
| Nearside Rear Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Offside Front Obligatory mirror missing |8.1.1| | 1 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Nearside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front Tie bar/rod has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Track rod end loose |2.2.B.1d| | 1 |
| Offside Lower Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Upper Front suspension ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Side repeater not working |1.4.A.2c| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Rear reflector missing both |1.5.1a| | 1 |
| rear brake recording little or no effort |3.7.B.5a| | 1 |
| Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 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 |
| Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Torsion bar attachment bracket loose |2.4.E.4a| | 1 |
| Offside Rear brake drum contaminated by brake fluid |3.5.1h| | 1 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front brake application uneven | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6.B1| | 1 |
| Front Windscreen wiper control missing |8.2.1a| | 1 |
| Offside Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Front brake drum contaminated by brake fluid |3.5.1h| | 1 |
| Brake lever has restricted free movement |3.5.1k| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Front position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Nearside Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Offside front brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Front Wheel insecure |4.2.A.1c| | 1 |
| Fuel pipe excessively chafed |7.2.2| | 1 |
| Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 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 |
| Upper Fuel pipe leaking |7.2.3| | 1 |
| Offside Rear Body has excessive displacement which may lead to loss of vehicle control |6.1.B.1a| | 1 |
| Brake pump leaking |3.6.A.1| | 1 |
| Centre Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Front Fuel hose leaking |7.2.3| | 1 |
| front brake binding |3.7.B.1| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Windscreen wiper blade insecure | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Rear wheel cylinder leaking |3.6.A.1| | 1 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| An item not tested |Manual| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Brake hose twisted |3.6.B.4c| | 1 |
| Steering rack insecure |2.2.B.1a| | 1 |
| Nearside Front Anti-roll bar attachment bracket/mounting insecure |2.4.G.1| | 1 |
| Offside Front Anti-roll bar attachment bracket/mounting insecure |2.4.G.1| | 1 |
| rear brakes release unevenly |3.7.B.4| | 1 |
| Nearside Rear Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Nearside Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Nearside Front Anti-roll bar synthetic mounting deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Nearside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Exhaust has a part missing |7.1.1a| | 1 |
| Offside Rear Front suspension locking device missing |2.5.A.4| | 1 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Leaf spring anchor bracket loose |2.4.B.6a| | 1 |
| Front Front suspension retaining device missing |2.5.A.4| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Nearside Front Track rod end ball joint dust cover missing |2.1.3 |g| |ii|| | 1 |
| Offside Front Track rod end ball joint dust cover missing |2.1.3 |g| |ii|| | 1 |
| Nearside Front Lower Suspension component ball joint likely to become detached ball joint bolt missing (5.3.4 (a) (ii)) | 1 |
| Offside Front Lower Suspension component ball joint likely to become detached ball joint bolt missing (5.3.4 (a) (ii)) | 1 |
| Nearside Front Drag link end modification unsafe centre, joint welded (2.1.3 (f) (i)) | 1 |
| Brake pipe excessively corroded | 1 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i)) | 1 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Windscreen washer not working | 1 |
| Fuel system component leaking excessively or a risk of fire carburetor area (6.1.3 (b) (ii)) | 1 |