| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 1786 |
| Headlamp aim out of alignment | 791 |
| Registration plate lamp issues | 690 |
| Windscreen wiper does not clear the windscreen effectively | 614 |
| Offside Rear fog lamp not working |1.3.2b| | 381 |
| Nearside Stop lamp not working |1.2.1b| | 295 |
| Offside Stop lamp not working |1.2.1b| | 294 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 280 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 249 |
| Brakes imbalanced across an axle | 198 |
| Registration plate issues | 193 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 184 |
| Parking brake lever has no reserve travel |3.1.6b| | 184 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 184 |
| Parking brake: efficiency below requirements |3.7.B.7| | 173 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 135 |
| Centre Stop lamp not working |1.2.1b| | 131 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 129 |
| Nearside Rear Stop lamp not working |1.2.1b| | 124 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 120 |
| Offside Front brake disc excessively pitted |3.5.1h| | 120 |
| Offside Rear Stop lamp not working |1.2.1b| | 117 |
| Service brake: efficiency below requirements |3.7.B.7| | 95 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 94 |
| Offside Side repeater not working |1.4.A.2c| | 78 |
| Rear parking brake recording little or no effort | 77 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 73 |
| Front brake disc in such a condition that it is seriously weakened | 69 |
| Anti-lock braking system warning lamp indicates an ABS fault | 65 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 61 |
| Nearside Side repeater not working |1.4.A.2c| | 61 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 61 |
| Front brake application uneven | 60 |
| Emissions not tested |7.0| | 59 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 57 |
| Rear brake binding | 53 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 52 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 51 |
| Stop lamp not working |1.2.1b| | 51 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 49 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 49 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 47 |
| Front brake disc excessively pitted |3.5.1h| | 46 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 46 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 46 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 45 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 43 |
| Brake hose excessively deteriorated | 41 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 40 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 39 |
| Offside Headlamp insecure |1.7.3| | 39 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 38 |
| Nearside Rear Shock absorber has negligible damping effect |2.7.5| | 37 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 36 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 35 |
| Centre Rear Stop lamp not working |1.2.1b| | 35 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 34 |
| Windscreen has damage | 33 |
| Offside Front Direction indicator not working |1.4.A.2c| | 31 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 31 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 30 |
| Offside Front brake disc excessively scored |3.5.1h| | 30 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 29 |
| Offside Rear Shock absorber has negligible damping effect |2.7.5| | 27 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 27 |
| Nearside Headlamp insecure |1.7.3| | 27 |
| Offside Obligatory mirror insecure |8.1.1| | 27 |
| Nearside Front brake disc excessively scored |3.5.1h| | 26 |
| Rear brake application uneven | 26 |
| Rear Rear fog lamp not working |1.3.2b| | 25 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 25 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 25 |
| Offside Front Side repeater not working |1.4.A.2c| | 24 |
| An item not tested |Manual| | 24 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 24 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 24 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 23 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 23 |
| Windscreen wiper blade insecure | 23 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 22 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 20 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 20 |
| Offside front brake binding |3.7.B.1| | 20 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 20 |
| Rear Stop lamp not working |1.2.1b| | 19 |
| Horn not working |1.6.2a| | 18 |
| Stop lamp remains on when the brakes are released | 18 |
| Offside Front front brake binding |3.7.B.1| | 18 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 18 |
| Nearside Front Side repeater not working |1.4.A.2c| | 17 |
| Rear brake disc in such a condition that it is seriously weakened | 16 |
| Rear fog lamp not working |1.3.2b| | 15 |
| front brakes release unevenly |3.7.B.4| | 15 |
| Nearside Rear Direction indicators not working |1.4.A.2c| | 14 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 14 |
| Brake performance not tested |3.7.A.1| | 14 |
| Battery insecure |1.9.1| | 14 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 13 |
| Fuel system component insecure |7.2.1| | 13 |
| Fuel system component leaking |7.2.3| | 13 |
| Rear brake disc excessively pitted |3.5.1h| | 13 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 13 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 13 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 13 |