| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 502 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 237 |
| Headlamp aim out of alignment | 204 |
| Brake pipe excessively corroded | 181 |
| Parking brake: efficiency below requirements |3.7.B.7| | 124 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 86 |
| Rear parking brake recording little or no effort | 74 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 70 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 58 |
| Registration plate lamp issues | 55 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 53 |
| Nearside Front Shock absorbers has a serious fluid leak | 52 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 47 |
| Registration plate issues | 45 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 37 |
| Offside Front Shock absorbers has a serious fluid leak | 35 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 35 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 34 |
| Parking brake lever has no reserve travel |3.1.6b| | 31 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 31 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 31 |
| Windscreen washer not working | 29 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 29 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 27 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 27 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 26 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 26 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 25 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 24 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 20 |
| Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 20 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 19 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 19 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 17 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 17 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 17 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 15 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 14 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 14 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 13 |
| Brakes imbalanced across an axle | 13 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 12 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 11 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 10 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Offside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Service brake: efficiency below requirements |3.7.B.7| | 9 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 9 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 9 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 9 |
| Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 9 |
| Nearside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 9 |
| Rear fog lamp not working |1.3.2b| | 8 |
| Front brake disc in such a condition that it is seriously weakened | 8 |
| Offside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Brake performance unable to be tested (1.2.1 (g)) | 7 |