| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1972 |
| Windscreen wiper does not clear the windscreen effectively | 1424 |
| Headlamp aim out of alignment | 1082 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 528 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 485 |
| Brake pipe excessively corroded | 435 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 426 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 416 |
| Brakes imbalanced across an axle | 413 |
| Registration plate issues | 412 |
| Offside Stop lamp not working |1.2.1b| | 334 |
| Nearside Stop lamp not working |1.2.1b| | 301 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 295 |
| Centre Stop lamp not working |1.2.1b| | 280 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 251 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 228 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 223 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 212 |
| Anti-lock braking system warning lamp indicates an ABS fault | 202 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 202 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 198 |
| Brake hose excessively deteriorated | 167 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 166 |
| Offside Rear Stop lamp not working |1.2.1b| | 157 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 157 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 147 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 144 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 128 |
| Nearside Rear Stop lamp not working |1.2.1b| | 126 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 121 |
| Front brake application uneven | 116 |
| Emissions not tested |7.0| | 107 |
| Parking brake: efficiency below requirements |3.7.B.7| | 98 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 95 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 93 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 90 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 89 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 82 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 78 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 73 |
| Windscreen has damage | 70 |
| Stop lamp not working |1.2.1b| | 67 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 67 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 65 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 60 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 60 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 60 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 56 |
| Centre Rear Stop lamp not working |1.2.1b| | 56 |
| Rear parking brake recording little or no effort | 53 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 50 |
| Front brake disc in such a condition that it is seriously weakened | 50 |
| Battery insecure |1.9.1| | 45 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 44 |
| Rear brake application uneven | 42 |
| Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 41 |
| Windscreen wiper blade insecure | 41 |
| Nearside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 40 |
| Front position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Rear fog lamp not working |1.3.2b| | 38 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 37 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 37 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 36 |
| Offside Front brake disc excessively pitted |3.5.1h| | 34 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 32 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 32 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 31 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 31 |
| Offside front brake binding |3.7.B.1| | 31 |
| Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 30 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 29 |
| Offside Headlamp insecure |1.7.3| | 29 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 29 |
| Offside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 29 |
| Brake pedal spongy |3.3.B.1b| | 28 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 28 |
| Front constant velocity joint gaiter split |2.5.C.1a| | 28 |
| Horn not working |1.6.2a| | 28 |
| Parking brake lever has no reserve travel |3.1.6b| | 28 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 26 |
| Upper Stop lamp not working |1.2.1b| | 25 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 25 |
| Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 25 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 25 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 25 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 24 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 24 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 24 |
| Service brake: efficiency below requirements |3.7.B.7| | 24 |
| Rear Stop lamp not working |1.2.1b| | 24 |
| Nearside Headlamp insecure |1.7.3| | 24 |
| Bonnet cannot be secured in the closed position |8.4.1| | 23 |
| Brake hose damaged | 23 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 22 |
| Nearside Front All position lamps not working |1.1.A.3b| | 22 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 22 |