| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 27 |
| Registration plate lamp issues | 14 |
| Brakes imbalanced across an axle | 13 |
| Headlamp aim out of alignment | 12 |
| Windscreen wiper does not clear the windscreen effectively | 11 |
| Parking brake: efficiency below requirements |3.7.B.7| | 10 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 10 |
| Registration plate issues | 7 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 6 |
| Offside Stop lamp not working |1.2.1b| | 5 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Anti-lock braking system warning lamp indicates an ABS fault | 4 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Brake hose excessively deteriorated | 4 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 4 |
| Rear parking brake recording little or no effort | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 2 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Emissions not tested |7.0| | 2 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Electrical wiring inadequately supported |1.9.2a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` mirror dangler |8.3.1e| | 1 |
| Nearside Front Upper Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Offside Front Upper Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced |4.1.4 |b|| | 1 |
| Offside Front brake caliper securing device missing |3.5.1j| | 1 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 1 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 1 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 1 |
| Nearside Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Rear fog lamp switch faulty |1.3.1a| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Offside Front coil spring cracked |2.4.C.1a| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Outer Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid dangerous (1.1.16 (b) (i)) | 1 |
| Power steering pipe/hose leaking (2.1.5 (a)) | 1 |
| Nearside Front Lower Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Centre Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Windscreen has damage | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 1 |
| Offside Rear coil spring fractured |2.4.C.1a| | 1 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Headlamps matched pair are not the same colour |1.7.6| | 1 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 1 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 1 |
| Front Exhaust system not adequately supported |7.1.1| | 1 |
| Nearside Front Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Offside Front Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Mechanical brake component has restricted free movement | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Nearside front brake binding |3.7.B.1| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Indicator switch faulty |1.4.A.1| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Rear Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings Sill area |6.1.B.2| | 1 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 1 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| 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| | 1 |
| Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Rear brake application uneven | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |