| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 149 |
| Headlamp aim out of alignment | 67 |
| Registration plate lamp issues | 60 |
| Windscreen wiper does not clear the windscreen effectively | 49 |
| Offside Rear fog lamp not working |1.3.2b| | 30 |
| Registration plate issues | 27 |
| Nearside Stop lamp not working |1.2.1b| | 24 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 23 |
| Parking brake lever has no reserve travel |3.1.6b| | 21 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 19 |
| Offside Stop lamp not working |1.2.1b| | 17 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 16 |
| Parking brake: efficiency below requirements |3.7.B.7| | 13 |
| Brakes imbalanced across an axle | 13 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 12 |
| Nearside Rear Stop lamp not working |1.2.1b| | 12 |
| Centre Stop lamp not working |1.2.1b| | 12 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Rear Stop lamp not working |1.2.1b| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Offside Front brake disc excessively pitted |3.5.1h| | 9 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 9 |
| Rear parking brake recording little or no effort | 9 |
| Service brake: efficiency below requirements |3.7.B.7| | 9 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 8 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Offside Side repeater not working |1.4.A.2c| | 8 |
| Nearside Side repeater not working |1.4.A.2c| | 8 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 6 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Stop lamp not working |1.2.1b| | 5 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Offside Front Side repeater not working |1.4.A.2c| | 4 |
| Rear fog lamp not working |1.3.2b| | 4 |
| Brake hose excessively deteriorated | 4 |
| Nearside Headlamp insecure |1.7.3| | 4 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Fuel system component insecure |7.2.1| | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Front brake disc excessively scored |3.5.1h| | 3 |
| Emissions not tested |7.0| | 3 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 3 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Offside Front Direction indicator not working |1.4.A.2c| | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 3 |
| Front brake application uneven | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Nearside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Obligatory mirror insecure |8.1.1| | 2 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 2 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 2 |
| Offside Front brake disc excessively scored |3.5.1h| | 2 |
| Nearside Front Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 2 |
| Offside Front Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 2 |
| Rear Exhaust system not adequately supported |7.1.1| | 2 |
| Front Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 2 |
| An item not tested |Manual| | 2 |
| Nearside Front Suspension arm rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Front Suspension arm rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Inner Front brake disc excessively pitted |3.5.1h| | 2 |
| Offside Inner Front brake disc excessively pitted |3.5.1h| | 2 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 2 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 2 |
| Windscreen has damage | 2 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 2 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Front Obligatory mirror insecure |8.1.1| | 2 |
| Windscreen wiper blade insecure | 2 |
| front brakes release unevenly |3.7.B.4| | 2 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 2 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicators not working |1.4.A.2c| | 2 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 2 |