| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Registration plate lamp issues | 5 |
| Registration plate issues | 4 |
| Brakes imbalanced across an axle | 3 |
| Windscreen washer not working | 3 |
| Horn not working (7.7 (a)) | 3 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Windscreen wiper does not clear the windscreen effectively | 2 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Stop lamp|s| adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Offside Stop lamp|s| adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i)) | 1 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Windscreen washer control is inaccessible to the driver |8.2.1a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Nearside Rear Brake pipe likely to become detached or damaged (1.1.11 (d) (ii)) | 1 |
| Offside Rear Brake pipe likely to become detached or damaged (1.1.11 (d) (ii)) | 1 |
| Offside Obligatory mirror insecure (3.3 (b) (ii)) | 1 |
| Hazard warning switch missing NOT FITTED |1.4.B.1d| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Front Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 1 |
| Fuel tank leaking Leaking from o-ring on fuel tank side of connector |7.2.3| | 1 |
| Offside Rear Undertray likely to become detached (6.2.1 (a) (ii)) | 1 |
| Offside Front Seat belt anchorage prescribed area is inadequately repaired (7.1.1 (a) (i)) | 1 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Stop lamp(s) not working by footbrake (4.3.1 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn not working |1.6.2a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Service brake lagging in operation (1.2.1 (d)) | 1 |
| Rear fog lamp obviously incorrectly positioned |1.3.2a| | 1 |
| Front Road wheel fractured rim bead corroded (5.2.2 (a)) | 1 |
| Offside Rear Road wheel fractured rim bead corroded (5.2.2 (a)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Fuel pipe insecure fouling drive shaft |7.2.1| | 1 |
| Rear fog lamp obviously incorrectly positioned (4.5.4 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Windscreen wiper not working (3.4 (a)) | 1 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Brake hydraulic reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Central Front Vehicle Identification Number not displayed (0.2 (a)) | 1 |
| Fuel cap/sealing device ineffective rubber seal missing (6.1.3 (b) (i)) | 1 |
| Rear fog lamp missing (4.5.1 (a) (ii)) | 1 |
| Central Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Headlamp not working on dipped beam |1.7.5a| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Obligatory mirror insecure |3.3 |b| |ii|| | 1 |