| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 8 |
| Headlamp aim out of alignment | 5 |
| Brake pipe excessively corroded | 5 |
| Rear brake binding | 4 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Stop lamp remains on when the brakes are released | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Hazard warning switch missing |1.4.B.1d| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Registration plate lamp issues | 2 |
| Registration plate issues | 2 |
| Horn not working |1.6.2a| | 2 |
| Nearside Rear Direction indicator incomplete |1.5.A1b| | 1 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Brake linkage has restricted free movement |3.5.1k| | 1 |
| Service brake is causing the steering wheel to severely pull one way |3.7.C.2| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Rear Wheel insecure |4.2.A.1c| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Rear Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Front Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Battery insecure |1.9.1| | 1 |
| Hazard warning lamps not fitted |1.4.B.1a| | 1 |
| Windscreen wiper not operating over a large enough area to give an adequate view Not Working |8.2.1c| | 1 |
| Fuel cap/sealing device mounting flange/sealing method defective Unable to remove cap to check sealing washer |7.2.4c| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Brake master cylinder insecurely mounted |3.6.G.1a| | 1 |
| Windscreen washer not working | 1 |
| Exhaust has a major leak of exhaust gases rear exhaust box holed, corroded, and leaking |6.1.2 |a|| | 1 |
| Parking brake lever pawl spring does not push the pawl positively into the ratchet teeth |3.1.5| | 1 |
| Parking brake lever releases when knocked |3.1.6a| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear brake application uneven | 1 |
| Brake cable locking device insecure |3.5.1l| | 1 |
| Exhaust has a major leak of exhaust gases exhaust silencer rusty and blowing |7.1.2| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Brake lever has inadequate reserve travel front brake lever |9.3.1f| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Fuel system component leaking |7.2.3| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Obligatory mirror insecure |8.1.1| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Rear rear brake grabbing severely |3.7.A.5b| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Offside Rear fog lamp missing |1.3.2a| | 1 |
| Rear fog lamp switch missing |1.3.1a| | 1 |
| Offside Stop lamp obviously incorrectly positioned |1.2.1a| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Front Road wheel distorted |4.2.A.1a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Rear Fuel pipe leaking |7.2.3| | 1 |
| Centre Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Centre Front Windscreen wiper blade deteriorated |8.2.2| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |