| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 372 |
| Registration plate lamp issues | 298 |
| Headlamp aim out of alignment | 270 |
| Windscreen wiper does not clear the windscreen effectively | 255 |
| Parking brake: efficiency below requirements |3.7.B.7| | 146 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 116 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 110 |
| Rear parking brake recording little or no effort | 103 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 102 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 94 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 92 |
| Registration plate issues | 91 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 87 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 82 |
| Nearside Stop lamp not working |1.2.1b| | 63 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 60 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 56 |
| Offside Stop lamp not working |1.2.1b| | 55 |
| Brakes imbalanced across an axle | 50 |
| Offside Rear coil spring broken |2.4.C.1a| | 43 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 43 |
| Rear brake disc in such a condition that it is seriously weakened | 37 |
| Front brake disc in such a condition that it is seriously weakened | 37 |
| Rear brake binding | 33 |
| Offside Rear coil spring fractured |2.4.C.1a| | 32 |
| Rear Exhaust system not adequately supported |7.1.1| | 32 |
| Offside Rear fog lamp not working |1.3.2b| | 31 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 31 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 31 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 29 |
| Nearside Rear coil spring broken |2.4.C.1a| | 28 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 26 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Battery insecure |1.9.1| | 23 |
| Offside Rear Stop lamp not working |1.2.1b| | 22 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 21 |
| Emissions not tested |7.0| | 21 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 20 |
| Windscreen wiper blade insecure | 20 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 20 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 19 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Windscreen has damage | 18 |
| Anti-lock braking system warning lamp indicates an ABS fault | 18 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 17 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 15 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 15 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 15 |
| Offside Headlamp insecure |1.7.3| | 14 |
| Service brake: efficiency below requirements |3.7.B.7| | 14 |
| Nearside Rear Stop lamp not working |1.2.1b| | 14 |
| Rear fog lamp not working |1.3.2b| | 14 |
| Nearside Headlamp insecure |1.7.3| | 13 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 13 |
| Rear brake application uneven | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 12 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 12 |
| Offside Front Headlamp insecure |1.7.3| | 12 |
| Exhaust system not adequately supported |7.1.1| | 12 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 11 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 11 |
| Offside Front brake disc excessively pitted |3.5.1h| | 10 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 10 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 9 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 9 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Nearside Front coil spring broken |2.4.C.1a| | 9 |
| Offside Front coil spring fractured |2.4.C.1a| | 9 |
| Offside Front coil spring broken |2.4.C.1a| | 9 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 8 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 8 |
| Fuel cap/sealing device missing |7.2.4a| | 8 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 8 |
| Offside Front coil spring incomplete |2.4.C.1a| | 8 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Emissions not tested |7.3.A.1| | 8 |
| Front brake application uneven | 8 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Nearside Headlamp not working on main beam |1.7.5a| | 7 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 7 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 7 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 7 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 7 |
| Offside Side repeater insecure |1.4.A.2b| | 6 |
| Rear Exhaust mounting missing |7.1.1b| | 6 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 6 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 6 |
| 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| | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 6 |
| Brake performance not tested |3.7.A.1| | 6 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 6 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 6 |
| Rear Mechanical brake component has restricted free movement | 6 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Front brake excessively fluctuating | 6 |