| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Registration plate lamp issues | 9 |
| Windscreen wiper does not clear the windscreen effectively | 9 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Brake pipe excessively corroded | 4 |
| Windscreen washer not working | 3 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Service brake: efficiency below requirements |3.7.C.1a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear brake binding | 3 |
| Registration plate issues | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Offside Rear fog lamp not working |1.3.2b| | 2 |
| Rear fog lamp tell tale not working |1.3.1b| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam |1.7.5a| | 2 |
| Nearside Obligatory mirror missing |8.1.1| | 2 |
| All position lamps not working |1.1.A.3b| | 2 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Nearside Rear Brake pipe excessively chafed |3.6.B.2c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Service brake: efficiency below requirements |3.7.D.4| | 1 |
| Front front brake recording little or no effort |3.7.B.5a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Windscreen wiper not working (3.4 (a)) | 1 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Front Towbar component defective (6.1.6 (a)) | 1 |
| Fuel pipe so insecure there is a risk of fire (6.1.3 (a) (ii)) | 1 |
| Offside Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 1 |
| Front Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Offside Rear Position lamp adversely affected by the operation of another lamp side light / indicator (4.2.3 (c)) | 1 |
| Front Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Rear Brake lever cannot be released smoothly |9.3.1h| | 1 |
| Offside Rear Brake hose twisted |3.6.B.4c| | 1 |
| Offside Rear Suspension arm insecure |2.4.G.1| | 1 |
| Nearside Rear Shock absorber insecure |2.7.2b| | 1 |
| Offside Front Direction indicator incomplete |1.5.A1b| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| All position lamps not in good working order |function impaired| |1.1.A.2a| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator incomplete |1.5.A1b| | 1 |
| Nearside Rear Body or chassis is cracked, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Nearside Front Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Offside Front Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Nearside Body has a projection caused by damage |6.1.C.1| | 1 |
| Offside Body has a projection caused by damage |6.1.C.1| | 1 |
| Centre Exhaust has a part missing |7.1.1a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Brake linkage has restricted free movement |3.5.1k| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Horn not working |1.6.2a| | 1 |
| Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |9.2.2a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Hazard warning switch inoperative not fitted (4.4.2 (a) (ii)) | 1 |
| Fuel hose insecure at carb end (6.1.3 (a) (i)) | 1 |
| Fuel hose damaged at carb end split showing cords (6.1.3 (c) (ii)) | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Centre Fuel system component leaking |7.2.3| | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases BOX |7.1.2| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement NO KEY TO CHECK CAP |7.2.4b| | 1 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Windscreen wiper control missing |8.2.1a| | 1 |
| Nearside Drive shaft which forms part of the suspension coupling gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e| | 1 |
| Offside Drive shaft which forms part of the suspension coupling gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e| | 1 |
| Windscreen washer control is inaccessible to the driver |8.2.1a| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Rear Fuel pipe insecure |7.2.1| | 1 |
| Nearside Rear Wheel nut|s| loose |4.2.A.1e| | 1 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Headlamp insecure |1.7.3| | 1 |
| Offside Direction indicator flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Nearside Front passenger door does not latch securely closed |6.2.B.1a| | 1 |
| Front Steering system has a road wheel fouling a part of the vehicle |2.2.D.2a| | 1 |
| Nearside Rear Brake pipe kinked |3.6.B.2b| | 1 |
| Headlamp not working on main beam |1.7.5a| | 1 |
| Fuel cap/sealing device missing |7.2.4a| | 1 |