| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 174 |
| Windscreen wiper does not clear the windscreen effectively | 171 |
| Brake hose excessively deteriorated | 150 |
| Headlamp aim out of alignment | 96 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 88 |
| Rear fog lamp not working |1.3.2b| | 72 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 70 |
| Offside Rear fog lamp not working |1.3.2b| | 68 |
| Nearside Stop lamp not working |1.2.1b| | 62 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 61 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 56 |
| Registration plate issues | 55 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 50 |
| Offside Stop lamp not working |1.2.1b| | 48 |
| Offside Rear Stop lamp not working |1.2.1b| | 39 |
| Nearside Rear Stop lamp not working |1.2.1b| | 37 |
| Brake pipe excessively corroded | 33 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 30 |
| Parking brake: efficiency below requirements |3.7.B.7| | 29 |
| Brake hose damaged | 29 |
| Brakes imbalanced across an axle | 29 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 22 |
| Emissions not tested |7.0| | 20 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 19 |
| Rear Rear fog lamp not working |1.3.2b| | 17 |
| Rear fog lamp tell tale not working |1.3.1b| | 16 |
| Battery insecure |1.9.1| | 15 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 15 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 14 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 14 |
| Rear parking brake recording little or no effort | 13 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 13 |
| Anti-lock braking system warning lamp indicates an ABS fault | 13 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 10 |
| 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| | 10 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 9 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 8 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Nearside Side repeater not working |1.4.A.2c| | 8 |
| Offside Rear fog lamp missing |1.3.2a| | 8 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 8 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 8 |
| Horn not working |1.6.2a| | 8 |
| Windscreen wiper blade insecure | 8 |
| Rear fog lamp switch missing |1.3.1a| | 7 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 7 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Stop lamp not working |1.2.1b| | 7 |
| Service brake: efficiency below requirements |3.7.B.7| | 7 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Offside Side repeater not working |1.4.A.2c| | 6 |
| Nearside Outer Stop lamp not working |1.2.1b| | 6 |
| 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| | 6 |
| Offside front brake binding |3.7.B.1| | 6 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 6 |
| Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 6 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 6 |
| Rear Stop lamp not working |1.2.1b| | 6 |
| Nearside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 6 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 5 |
| Nearside Front front brake binding |3.7.B.1| | 5 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Rear fog lamp insecure |1.3.2a| | 5 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| 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| | 5 |
| Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Mechanical brake component has restricted free movement | 5 |
| Front brake application uneven | 5 |
| Offside Inner Stop lamp not working |1.2.1b| | 5 |
| Offside Front Side repeater not working |1.4.A.2c| | 5 |
| Rear Rear fog lamp missing |1.3.2a| | 5 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 5 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 5 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Nearside Inner Stop lamp not working |1.2.1b| | 5 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 5 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 5 |
| Nearside Side repeater insecure |1.4.A.2b| | 5 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 5 |
| Windscreen washer not working | 5 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 4 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Offside Rear fog lamp insecure |1.3.2a| | 4 |
| Nearside Front Direction indicators not working |1.4.A.2c| | 4 |
| Offside Front Direction indicator not working |1.4.A.2c| | 4 |
| Rear fog lamp emits a light other than red |1.3.2e| | 4 |
| Rear brake binding | 4 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 4 |
| Offside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 4 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 4 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.4.B.1| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 4 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 4 |
| Nearside Front Side repeater not working |1.4.A.2c| | 4 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 4 |
| Offside Front front brake binding |3.7.B.1| | 3 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Rear Rear fog lamp missing |1.3.2a| | 3 |
| Offside Front Seat belt damaged sufficient to significantly weakened the webbing |5.2.2a| | 3 |
| Rear fog lamp missing |1.3.2a| | 3 |
| Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 3 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3 |
| Nearside Rear Rear position lamp|s| incorrect colour |1.1.A.3e| | 3 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 3 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Centre Stop lamp not working |1.2.1b| | 3 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Offside Outer Stop lamp not working |1.2.1b| | 3 |
| Offside Front All position lamps not working |1.1.A.3b| | 3 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 3 |
| Bonnet retaining device ineffective |8.4.2| | 3 |
| Nearside Front Anti-roll bar linkage worn and seriously weakened |2.4.G.1| | 3 |
| Offside Side repeater insecure |1.4.A.2b| | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Nearside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 3 |