| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Brakes imbalanced across an axle | 3 |
| Windscreen wiper does not clear the windscreen effectively | 2 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users |8.2.2.2 |c|| | 1 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 1 |
| Exhaust emissions test aborted because smoke levels are significantly in excess of the specified limit values |8.2.2.2 |f|| | 1 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Air brake cylinder/actuator locking device insecure |3.6.A.2d| | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Centre Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Nearside Side repeater missing |1.4.A.2b| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Brake pipe excessively corroded | 1 |
| Air/vacuum reservoir insecurely mounted |3.6.A.2a| | 1 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Front Brake pipe fouled by moving parts |3.6.B.2a| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Offside Front Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Registration plate lamp issues | 1 |
| Registration plate issues | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Drag link end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt DRAG LINK END (2.1.3 (g) (ii)) | 1 |