| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 228 |
| Windscreen wiper does not clear the windscreen effectively | 192 |
| Headlamp aim out of alignment | 150 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 57 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 55 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 46 |
| Registration plate issues | 46 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 45 |
| Nearside Stop lamp not working |1.2.1b| | 40 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 38 |
| Offside Stop lamp not working |1.2.1b| | 37 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 34 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 34 |
| Centre Stop lamp not working |1.2.1b| | 26 |
| Brakes imbalanced across an axle | 25 |
| Offside Rear Stop lamp not working |1.2.1b| | 23 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 22 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Brake pipe excessively corroded | 19 |
| Nearside Rear Stop lamp not working |1.2.1b| | 17 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Parking brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 11 |
| Front brake application uneven | 10 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 10 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Service brake: efficiency below requirements |3.7.B.7| | 9 |
| Stop lamp not working |1.2.1b| | 9 |
| Centre Rear Stop lamp not working |1.2.1b| | 9 |
| Windscreen wiper blade insecure | 8 |
| Windscreen has damage | 8 |
| Brake hose excessively deteriorated | 8 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Front position lamp|s| not working |1.1.A.3b| | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Offside Headlamp not working on main beam |1.7.5a| | 6 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Nearside Headlamp insecure |1.7.3| | 5 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Rear Stop lamp not working |1.2.1b| | 5 |
| Battery insecure |1.9.1| | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 4 |
| Upper Stop lamp not working |1.2.1b| | 4 |
| Rear parking brake recording little or no effort | 4 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Nearside Rear Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 4 |
| Indicator switch faulty |1.4.A.1| | 4 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Offside front brake binding |3.7.B.1| | 4 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 4 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 3 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 3 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 3 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Offside Steering rack gaiter split |2.2.D.2d| | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 3 |
| Offside Headlamp aim not tested |1.8.A.1c| | 3 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 3 |
| Power steering fluid level below minimum |2.3.1| | 3 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 3 |
| Front brake excessively fluctuating | 3 |
| Rear Rear fog lamp not working |1.3.2b| | 3 |
| Rear brake application uneven | 3 |
| Offside Front coil spring fractured |2.4.C.1a| | 3 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 3 |
| Emissions not tested |7.0| | 3 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |