| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6792 |
| Brake pipe excessively corroded | 4416 |
| Brake hose excessively deteriorated | 3548 |
| Windscreen wiper does not clear the windscreen effectively | 3441 |
| Registration plate lamp issues | 3031 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 2248 |
| Registration plate issues | 2073 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2057 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1642 |
| Offside Stop lamp not working |1.2.1b| | 1601 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1575 |
| Nearside Stop lamp not working |1.2.1b| | 1531 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1461 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1442 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1426 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1416 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1368 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1285 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 1193 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 1188 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1157 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1008 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 985 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 972 |
| Parking brake: efficiency below requirements |3.7.B.7| | 879 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 878 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 816 |
| Nearside Rear Stop lamp not working |1.2.1b| | 724 |
| Offside Rear Stop lamp not working |1.2.1b| | 688 |
| Rear parking brake recording little or no effort | 658 |
| Brakes imbalanced across an axle | 607 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 525 |
| Offside Rear fog lamp not working |1.3.2b| | 509 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 509 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 484 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 480 |
| Horn not working |1.6.2a| | 466 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 461 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 453 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 451 |
| Windscreen has damage | 439 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 435 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 434 |
| Direction indicators incorrect colour |1.4.A.2f| | 434 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 425 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 420 |
| Service brake: efficiency below requirements |3.7.B.7| | 417 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 415 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 412 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 401 |
| Front Exhaust system not adequately supported |7.1.1| | 378 |
| Front brake disc in such a condition that it is seriously weakened | 373 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 350 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 314 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 307 |
| Offside Side repeater not working |1.4.A.2c| | 303 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 298 |
| Nearside Side repeater not working |1.4.A.2c| | 295 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 292 |
| Exhaust system not adequately supported |7.1.1| | 278 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 264 |
| Front Steering damper leaking oil |2.2.C.1f| | 248 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 248 |
| Nearside Headlamp not working on main beam |1.7.5a| | 247 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 243 |
| Centre Stop lamp not working |1.2.1b| | 242 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 241 |
| Emissions not tested |7.0| | 238 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 227 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 225 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 225 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 223 |
| Brake hose damaged | 218 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 208 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 199 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 192 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 189 |
| Windscreen wiper blade insecure | 189 |
| Offside Headlamp not working on main beam |1.7.5a| | 188 |
| Rear Direction indicators incorrect colour |1.4.A.2f| | 187 |
| Centre Exhaust system not adequately supported |7.1.1| | 185 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 177 |
| Rear brake disc in such a condition that it is seriously weakened | 175 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 172 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 166 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 164 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 163 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 163 |
| Fuel system component leaking |7.2.3| | 161 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 159 |
| Rear brake application uneven | 157 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 155 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 146 |
| Rear brake binding | 146 |
| Side repeater incorrect colour |1.4.A.2f| | 144 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 144 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 143 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 140 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 138 |
| Stop lamp not working |1.2.1b| | 138 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 137 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 134 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 133 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 132 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 128 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 128 |
| Front Windscreen wiper blade deteriorated |8.2.2| | 128 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 127 |
| Offside Front coil spring fractured |2.4.C.1a| | 126 |
| Rear fog lamp not working |1.3.2b| | 124 |
| Direction indicator incorrect colour |1.4.A.2f| | 124 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 122 |
| Offside Obligatory mirror insecure |8.1.1| | 119 |