| Most common failures | No# failures |
|---|
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 6 |
| Headlamp aim out of alignment | 5 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Registration plate lamp issues | 2 |
| Brakes imbalanced across an axle | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Exhaust emissions hydrocarbon content excessive |7.3.B.1b| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 2 |
| Windscreen wiper does not clear the windscreen effectively | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Rear brake binding | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Windscreen washer not working | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Registration plate issues | 1 |