| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 308 |
| Headlamp aim out of alignment | 258 |
| Registration plate issues | 132 |
| Registration plate lamp issues | 89 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 68 |
| Anti-lock braking system warning lamp indicates an ABS fault | 67 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 55 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 50 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 49 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 49 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 38 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 37 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 34 |
| Brakes imbalanced across an axle | 33 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 29 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 29 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 24 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 23 |
| Nearside front brake binding |3.7.B.1| | 22 |
| Offside Stop lamp not working |1.2.1b| | 20 |
| Nearside Stop lamp not working |1.2.1b| | 19 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 14 |
| Windscreen washer not working | 14 |
| Nearside Rear Stop lamp not working |1.2.1b| | 13 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 13 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 13 |
| Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Parking brake lever has no reserve travel |3.1.6b| | 12 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Offside Front Position lamp not working |4.2.1 |a|| | 11 |
| Nearside Front Shock absorbers has a serious fluid leak | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 11 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 11 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 11 |
| Battery insecure |1.9.1| | 10 |
| Mechanical brake component has restricted free movement | 10 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 10 |
| Parking brake: efficiency below requirements |3.7.B.7| | 10 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 9 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 9 |
| Front brake application uneven | 9 |
| Offside Front front brake binding |3.7.B.1| | 9 |
| Brake pipe excessively corroded | 9 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Offside Rear coil spring broken |2.4.C.1a| | 8 |
| Offside Front Upper Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 8 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 8 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Offside Rear fog lamp not working |1.3.2b| | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Windscreen wiper blade insecure | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 7 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 7 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Shock absorbers has a serious fluid leak | 7 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 7 |
| Nearside Front front brake binding |3.7.B.1| | 7 |
| Rear Rear fog lamp not working |1.3.2b| | 6 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 6 |
| Nearside Front Upper Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Offside Rear Shock absorbers has a serious fluid leak | 5 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 5 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Rear brake binding | 5 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Emissions not tested (8.2.1.2 (d)) | 5 |
| Rear parking brake recording little or no effort | 5 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |