| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 201 |
| Registration plate lamp issues | 77 |
| Headlamp aim out of alignment | 74 |
| Windscreen wiper does not clear the windscreen effectively | 59 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 52 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 40 |
| Parking brake: efficiency below requirements |3.7.B.7| | 37 |
| Rear parking brake recording little or no effort | 31 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Nearside Stop lamp not working |1.2.1b| | 30 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 29 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 17 |
| Nearside Rear Stop lamp not working |1.2.1b| | 17 |
| Offside Stop lamp not working |1.2.1b| | 16 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 15 |
| Exhaust system not adequately supported |7.1.1| | 15 |
| Centre Exhaust system not adequately supported |7.1.1| | 15 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 15 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 15 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Registration plate issues | 14 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 14 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 14 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Rear Exhaust system not adequately supported |7.1.1| | 14 |
| Brakes imbalanced across an axle | 12 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Front brake disc in such a condition that it is seriously weakened | 12 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 12 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Offside Rear fog lamp not working |1.3.2b| | 11 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 10 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 9 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 8 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 8 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 7 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 7 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 7 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |
| Windscreen has damage | 6 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Rear brake binding | 6 |
| Brake hose excessively deteriorated | 6 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Offside Rear coil spring fractured |2.4.C.1a| | 6 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 5 |
| Offside Rear Stop lamp not working |1.2.1b| | 5 |
| Offside Headlamp insecure |1.7.3| | 5 |
| Anti-lock braking system warning lamp indicates an ABS fault | 5 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 5 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 5 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 4 |
| Nearside Front Headlamp insecure |1.7.3| | 4 |
| Battery insecure |1.9.1| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 4 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Front Exhaust system not adequately supported |7.1.1| | 4 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 4 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Front brake application uneven | 4 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Emissions not tested |7.0| | 4 |
| Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 3 |
| Nearside Headlamp insecure |1.7.3| | 3 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Nearside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 3 |
| Horn not working |1.6.2a| | 3 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside 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| | 3 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 3 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 3 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| 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| | 3 |
| Nearside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 3 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Front brake disc excessively pitted |3.5.1h| | 2 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 2 |
| Driver`s seat insecure |6.2.A.1| | 2 |
| Nearside Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Nearside Rear rear brake grabbing severely |3.7.A.5b| | 2 |
| Offside Rear position lamp|s| incomplete |1.1.4a| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 2 |
| Nearside Front Front position lamp|s| incorrect colour |1.1.A.3e| | 2 |
| Offside Front Front position lamp|s| incorrect colour |1.1.A.3e| | 2 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 2 |
| Offside Track rod end loose |2.2.B.1d| | 2 |
| Rear Brake load sensing valve seized |3.6.E.3| | 2 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| 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| | 2 |
| Fuel cap/sealing device sealing washer torn |7.2.4c| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 2 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1| | 2 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 2 |
| Offside Front brake disc excessively pitted |3.5.1h| | 2 |
| Nearside Rear coil spring broken |2.4.C.1a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Nearside front brake binding |3.7.B.1| | 2 |
| Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 2 |
| Exhaust mounting missing |7.1.1b| | 2 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Windscreen wiper blade insecure | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Rear coil spring broken |2.4.C.1a| | 2 |
| Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |
| Offside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 2 |
| Centre Exhaust mounting missing |7.1.1b| | 2 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |