| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 336 |
| Headlamp aim out of alignment | 289 |
| Registration plate lamp issues | 273 |
| Registration plate issues | 146 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 129 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 96 |
| Brakes imbalanced across an axle | 65 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 56 |
| Offside Stop lamp not working |1.2.1b| | 56 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 49 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 43 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 43 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 42 |
| Anti-lock braking system warning lamp indicates an ABS fault | 42 |
| Nearside Stop lamp not working |1.2.1b| | 41 |
| Parking brake: efficiency below requirements |3.7.B.7| | 40 |
| Brake pipe excessively corroded | 38 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 36 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 36 |
| Nearside front brake binding |3.7.B.1| | 35 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 33 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 32 |
| Nearside Rear Stop lamp not working |1.2.1b| | 32 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 32 |
| Battery insecure |1.9.1| | 29 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 28 |
| Rear parking brake recording little or no effort | 27 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 26 |
| Parking brake lever has no reserve travel |3.1.6b| | 26 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 24 |
| Rear brake disc in such a condition that it is seriously weakened | 23 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 22 |
| Offside Rear Stop lamp not working |1.2.1b| | 22 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 22 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 21 |
| Offside front brake binding |3.7.B.1| | 21 |
| Rear brake binding | 21 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 20 |
| Offside Rear coil spring broken |2.4.C.1a| | 20 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Bonnet cannot be secured in the closed position |8.4.1| | 19 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 18 |
| Offside Rear fog lamp not working |1.3.2b| | 18 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 16 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 16 |
| Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 16 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 15 |
| Windscreen has damage | 15 |
| Nearside Front front brake binding |3.7.B.1| | 14 |
| Windscreen wiper blade insecure | 14 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 14 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 13 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 13 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 13 |
| Nearside Headlamp not working on main beam |1.7.5a| | 13 |
| Front brake application uneven | 13 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 13 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 13 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 12 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Offside Front 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 |
| Nearside Rear coil spring broken |2.4.C.1a| | 10 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 10 |
| Offside Front front brake binding |3.7.B.1| | 10 |
| Horn not working |1.6.2a| | 10 |
| Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 10 |
| Front brake excessively fluctuating | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 10 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Rear coil spring fractured |2.4.C.1a| | 9 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 8 |
| Windscreen washer not working | 8 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Mechanical brake component has restricted free movement | 8 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 8 |
| Front Front position lamp|s| not working |1.1.A.3b| | 8 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 8 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Offside Front Upper Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 7 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 7 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 7 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 7 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 7 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |