| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 67 |
| Windscreen wiper does not clear the windscreen effectively | 67 |
| Headlamp aim out of alignment | 44 |
| Brake hose excessively deteriorated | 31 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 22 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 22 |
| Brake pipe excessively corroded | 20 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Nearside Stop lamp not working |1.2.1b| | 17 |
| Offside Stop lamp not working |1.2.1b| | 17 |
| Brakes imbalanced across an axle | 16 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 14 |
| Registration plate issues | 13 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 11 |
| Nearside Rear Stop lamp not working |1.2.1b| | 10 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 10 |
| Offside Rear Stop lamp not working |1.2.1b| | 10 |
| Battery insecure |1.9.1| | 9 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 9 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Rear fog lamp not working |1.3.2b| | 8 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Service brake: efficiency below requirements |3.7.B.7| | 7 |
| Windscreen has damage | 7 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 7 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 7 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 6 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 6 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 5 |
| Horn not working |1.6.2a| | 5 |
| Front brake application uneven | 5 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Emissions not tested |7.0| | 4 |
| Rear fog lamp emits a light other than red |1.3.2e| | 4 |
| Emissions not tested |7.3.A.1| | 4 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Rear fog lamp not working |1.3.2b| | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 4 |
| Exhaust system not adequately supported |7.1.1| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Offside Front Obligatory mirror insecure |8.1.1| | 3 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 3 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 3 |
| Nearside Seat belt locking mechanism does not secure or release |5.2.5a| | 3 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Stop lamp not working |1.2.1b| | 3 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 3 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Rear fog lamp missing |1.3.2a| | 2 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 2 |
| Nearside Front Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 2 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Vehicle structure is damaged, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Brake pedal spongy |3.3.B.1b| | 2 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 2 |
| Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Rear fog lamp missing |1.3.2a| | 2 |
| Nearside Rear Shock absorbers has a serious fluid leak | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Fuel cap/sealing device missing |7.2.4a| | 2 |
| Nearside Rear position lamp|s| insecure |1.1.A.3a| | 2 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 2 |
| Exhaust carbon monoxide content at idle exceeds default limits |8.2.1.2 |b|| | 2 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 2 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Offside Front Upper Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 2 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 2 |
| Nearside Rear Upper Shock absorbers has an excessively worn bush (5.3.2 (c)) | 2 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Shock absorbers has a serious fluid leak | 2 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 2 |