| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4255 |
| Windscreen wiper does not clear the windscreen effectively | 3214 |
| Registration plate lamp issues | 3091 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1808 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1561 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1177 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 905 |
| Brake pipe excessively corroded | 819 |
| Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 702 |
| Rear parking brake recording little or no effort | 687 |
| Offside Stop lamp not working |1.2.1b| | 577 |
| Brakes imbalanced across an axle | 569 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 521 |
| Registration plate issues | 519 |
| Nearside Stop lamp not working |1.2.1b| | 518 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 517 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 500 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 498 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 473 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 441 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 439 |
| Anti-lock braking system warning lamp indicates an ABS fault | 407 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 406 |
| Front brake disc in such a condition that it is seriously weakened | 376 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 344 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 341 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 338 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 324 |
| Rear brake binding | 320 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 287 |
| Centre Exhaust system not adequately supported |7.1.1| | 279 |
| Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 277 |
| Brake hose excessively deteriorated | 270 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 262 |
| Exhaust system not adequately supported |7.1.1| | 259 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 243 |
| Offside Rear Stop lamp not working |1.2.1b| | 232 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 227 |
| Nearside Headlamp not working on main beam |1.7.5a| | 226 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 223 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 222 |
| Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 216 |
| Horn not working |1.6.2a| | 211 |
| Nearside Rear Stop lamp not working |1.2.1b| | 211 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 205 |
| Rear Exhaust system not adequately supported |7.1.1| | 189 |
| Parking brake lever has no reserve travel |3.1.6b| | 176 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 174 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 171 |
| Service brake: efficiency below requirements |3.7.B.7| | 158 |
| Rear brake disc in such a condition that it is seriously weakened | 151 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 149 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 149 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 145 |
| Windscreen has damage | 144 |
| Emissions not tested |7.0| | 143 |
| Offside Rear fog lamp not working |1.3.2b| | 143 |
| Windscreen wiper blade insecure | 142 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 141 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 139 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 137 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 133 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 131 |
| Front brake application uneven | 129 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 126 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 122 |
| Offside Headlamp not working on main beam |1.7.5a| | 121 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 120 |
| Offside Front Brake pipe leaking |3.6.A.1| | 119 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 116 |
| Front position lamp|s| not working |1.1.A.3b| | 106 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 106 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 103 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 102 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 100 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 100 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 99 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 97 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 96 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 96 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 96 |
| Battery insecure |1.9.1| | 92 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 89 |
| Nearside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 88 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 88 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 88 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 88 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 88 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 84 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 83 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 83 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 82 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 82 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 78 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 76 |
| Rear Brake cable insecure | 75 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 75 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 74 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 74 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 73 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 70 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 69 |
| Nearside Rear Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 66 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 65 |
| Driver`s seat insecure |6.2.A.1| | 65 |
| Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 62 |
| Nearside Front Upper Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 61 |
| Nearside Brake cable has wires broken and is significantly weakened |3.5.1b| | 61 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 60 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 60 |
| Offside Headlamp insecure |1.7.3| | 60 |
| Offside Brake cable has wires broken and is significantly weakened |3.5.1b| | 60 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 59 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 58 |
| Rear brake application uneven | 58 |
| Centre Exhaust mounting missing |7.1.1b| | 57 |
| Nearside Headlamp insecure |1.7.3| | 57 |
| Brake performance not tested |3.7.A.1| | 57 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 56 |