| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5657 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 4873 |
| Brake pipe excessively corroded | 4822 |
| Windscreen wiper does not clear the windscreen effectively | 2883 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 2278 |
| Registration plate lamp issues | 1787 |
| Registration plate issues | 1763 |
| Brake hose excessively deteriorated | 1643 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1610 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1374 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1368 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1316 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1285 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1248 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1247 |
| Offside Stop lamp not working |1.2.1b| | 1053 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1043 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1035 |
| Nearside Stop lamp not working |1.2.1b| | 1033 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1000 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 974 |
| Brakes imbalanced across an axle | 861 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 722 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 710 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 706 |
| Rear parking brake recording little or no effort | 703 |
| Horn not working |1.6.2a| | 614 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 582 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 541 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 505 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 470 |
| Offside Rear Stop lamp not working |1.2.1b| | 462 |
| Service brake: efficiency below requirements |3.7.B.7| | 459 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 450 |
| Nearside Rear Stop lamp not working |1.2.1b| | 436 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 426 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 425 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 419 |
| Windscreen has damage | 416 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 412 |
| Emissions not tested |7.0| | 397 |
| Front brake disc in such a condition that it is seriously weakened | 368 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 368 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 362 |
| Nearside Side repeater not working |1.4.A.2c| | 361 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 355 |
| Front Exhaust system not adequately supported |7.1.1| | 349 |
| Offside Side repeater not working |1.4.A.2c| | 349 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 348 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 347 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 344 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 340 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 333 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 322 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 308 |
| Offside Rear fog lamp not working |1.3.2b| | 306 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 300 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 285 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 266 |
| Nearside Headlamp not working on main beam |1.7.5a| | 265 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 247 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 246 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 245 |
| Offside Headlamp not working on main beam |1.7.5a| | 244 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 227 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 226 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 198 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 195 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 195 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 193 |
| Front brake application uneven | 191 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 191 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 190 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 184 |
| Front Steering damper leaking oil |2.2.C.1f| | 182 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 179 |
| Rear brake disc in such a condition that it is seriously weakened | 178 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 177 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 176 |
| Rear brake application uneven | 175 |
| Windscreen wiper blade insecure | 172 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 170 |
| Exhaust system not adequately supported |7.1.1| | 168 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 166 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 165 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 165 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 163 |
| Parking brake lever has no reserve travel |3.1.6b| | 160 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 156 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 153 |
| Nearside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 153 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 152 |
| Brake hose damaged | 149 |
| Offside Outer Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 148 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 148 |
| Rear brake binding | 147 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 146 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 143 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 140 |
| Front Windscreen wiper blade deteriorated |8.2.2| | 140 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 139 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 138 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 138 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 138 |
| Centre Stop lamp not working |1.2.1b| | 135 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 134 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 132 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 129 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 128 |
| Nearside Front Side repeater not working |1.4.A.2c| | 127 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 122 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 119 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 115 |
| Direction indicators incorrect colour |1.4.A.2f| | 110 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 109 |
| Offside Front Side repeater not working |1.4.A.2c| | 107 |
| Fuel system component leaking |7.2.3| | 105 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 104 |
| Offside Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 104 |
| Offside front brake binding |3.7.B.1| | 101 |