| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 412 |
| Headlamp aim out of alignment | 257 |
| Windscreen wiper does not clear the windscreen effectively | 218 |
| Registration plate lamp issues | 186 |
| Brakes imbalanced across an axle | 74 |
| Registration plate issues | 68 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 67 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 60 |
| Front brake disc in such a condition that it is seriously weakened | 59 |
| Rear brake binding | 54 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 43 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 43 |
| Parking brake lever has no reserve travel |3.1.6b| | 42 |
| Parking brake: efficiency below requirements |3.7.B.7| | 41 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 39 |
| Rear brake disc in such a condition that it is seriously weakened | 36 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 33 |
| Anti-lock braking system warning lamp indicates an ABS fault | 33 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 28 |
| Nearside Front Sub-frame corroded and seriously weakened |2.4.G.1| | 27 |
| Rear brake application uneven | 26 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 24 |
| Nearside Stop lamp not working |1.2.1b| | 23 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 23 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 21 |
| Front brake application uneven | 21 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 19 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Service brake: efficiency below requirements |3.7.B.7| | 18 |
| Battery insecure |1.9.1| | 17 |
| Offside Front Sub-frame corroded and seriously weakened |2.4.G.1| | 17 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 17 |
| Windscreen has damage | 16 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 16 |
| Rear parking brake recording little or no effort | 15 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 15 |
| Front Sub-frame corroded and seriously weakened |2.4.G.1| | 13 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 13 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 13 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 12 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 11 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 11 |
| Windscreen wiper blade insecure | 10 |
| Offside Rear fog lamp not working |1.3.2b| | 10 |
| Rear brake disc excessively pitted |3.5.1h| | 9 |
| Offside front brake binding |3.7.B.1| | 9 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 9 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 8 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 8 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 8 |
| Nearside front brake binding |3.7.B.1| | 8 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 8 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 7 |
| Front brake excessively fluctuating | 7 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 7 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 7 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 7 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 7 |
| Nearside Rear brake disc excessively scored |3.5.1h| | 7 |
| Nearside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 6 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Stop lamp not working |1.2.1b| | 6 |
| Nearside Headlamp not working on main beam |1.7.5a| | 6 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Nearside Rear Brake pipe leaking |3.6.A.1| | 6 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Windscreen washer not working | 6 |
| Brake hose has insufficient room to move | 6 |
| Nearside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Front brake disc excessively pitted |3.5.1h| | 6 |
| Offside Headlamp not working on main beam |1.7.5a| | 6 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 6 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Offside Side repeater not working |1.4.A.2c| | 5 |
| Horn not working |1.6.2a| | 5 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 5 |
| Rear fog lamp tell tale not working |1.3.1b| | 5 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 5 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 5 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 5 |
| Brake hose damaged | 5 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Brake hose excessively deteriorated | 5 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 5 |
| Rear Mechanical brake component has restricted free movement | 5 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Hazard warning switch faulty |1.4.B.1d| | 5 |
| Brake performance not tested |3.7.A.1| | 5 |
| Offside Front front brake binding |3.7.B.1| | 5 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 5 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |