| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 409 |
| Windscreen wiper does not clear the windscreen effectively | 308 |
| Parking brake: efficiency below requirements |3.7.B.7| | 291 |
| Headlamp aim out of alignment | 278 |
| Brake pipe excessively corroded | 183 |
| Rear parking brake recording little or no effort | 179 |
| Brakes imbalanced across an axle | 135 |
| Rear brake binding | 128 |
| Parking brake lever has no reserve travel |3.1.6b| | 104 |
| Registration plate issues | 102 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 100 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 74 |
| Brake hose excessively deteriorated | 56 |
| Nearside Stop lamp not working |1.2.1b| | 53 |
| Offside Stop lamp not working |1.2.1b| | 52 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 51 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 48 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 47 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 46 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 42 |
| Nearside front brake binding |3.7.B.1| | 41 |
| Offside front brake binding |3.7.B.1| | 41 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 39 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 38 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 38 |
| Front brake application uneven | 36 |
| Service brake: efficiency below requirements |3.7.B.7| | 34 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 29 |
| Offside Front front brake binding |3.7.B.1| | 29 |
| Offside Rear Stop lamp not working |1.2.1b| | 28 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 27 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Offside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 27 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 26 |
| Offside Rear fog lamp not working |1.3.2b| | 26 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 26 |
| Nearside Rear Stop lamp not working |1.2.1b| | 25 |
| Rear brake application uneven | 24 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 24 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 24 |
| Nearside Front front brake binding |3.7.B.1| | 23 |
| Offside Front coil spring fractured |2.4.C.1a| | 22 |
| Rear Mechanical brake component has restricted free movement | 22 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 22 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 22 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 21 |
| Windscreen has damage | 21 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 19 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 18 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Mechanical brake component has restricted free movement | 17 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 16 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 16 |
| Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 15 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 15 |
| Anti-lock braking system warning lamp indicates an ABS fault | 15 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 14 |
| Rear brake disc in such a condition that it is seriously weakened | 14 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 14 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Emissions not tested |7.0| | 14 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 13 |
| Nearside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 13 |
| Battery insecure |1.9.1| | 12 |
| Windscreen wiper blade insecure | 12 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 12 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 10 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 10 |
| Nearside Rear Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 10 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 9 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 9 |
| Nearside front brake juddering severely |3.7.A.2b| | 9 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 9 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 9 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 9 |
| Offside Front coil spring incomplete |2.4.C.1a| | 8 |
| Offside Rear Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 8 |
| Offside Rear coil spring fractured |2.4.C.1a| | 8 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 8 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 8 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Offside front brake juddering severely |3.7.A.2b| | 8 |
| Power steering component|s| leaking |2.3.3b| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Centre Rear Exhaust has a major leak of exhaust gases |7.1.2| | 7 |
| Fuel pipe leaking |7.2.3| | 7 |
| Nearside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 7 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 7 |
| Centre Rear Statutory seat belt missing |5.1.1| | 7 |
| Offside Rear brake disc excessively scored |3.5.1h| | 7 |
| Offside Rear front brake binding |3.7.B.1| | 7 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 7 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 7 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Front coil spring fractured |2.4.C.1a| | 6 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 6 |
| Fuel cap/sealing device missing |7.2.4a| | 6 |
| Nearside Front Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 6 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 6 |
| Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front brake caliper has restricted free movement |3.5.1k| | 6 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 6 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 6 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Offside Front Brake hose bulging under pressure |3.6.B.3| | 6 |