| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 694 |
| Brake pipe excessively corroded | 676 |
| Headlamp aim out of alignment | 429 |
| Registration plate lamp issues | 335 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 206 |
| Nearside Front Shock absorbers has a serious fluid leak | 201 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 177 |
| Brakes imbalanced across an axle | 136 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 135 |
| Offside Front Shock absorbers has a serious fluid leak | 134 |
| Anti-lock braking system warning lamp indicates an ABS fault | 116 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 87 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 82 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 79 |
| Rear brake disc in such a condition that it is seriously weakened | 76 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 74 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 73 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 71 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 68 |
| Registration plate issues | 66 |
| Front brake disc in such a condition that it is seriously weakened | 56 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 55 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 50 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 47 |
| Emissions not tested (8.2.2.2 (e)) | 46 |
| Windscreen washer not working | 45 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 43 |
| 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)) | 43 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 41 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 38 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 38 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 36 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 36 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 35 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 35 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 34 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 32 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 31 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 31 |
| Rear fog lamp not working |1.3.2b| | 30 |
| Rear brake binding | 29 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 29 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 29 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 26 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 25 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 25 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 24 |
| 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)) | 23 |
| Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 23 |
| Offside Front Position lamp not working |4.2.1 |a|| | 22 |
| Offside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 22 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 21 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 21 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 21 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 20 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 19 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 19 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 19 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 18 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 18 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 16 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 16 |
| Brake hose excessively deteriorated | 16 |
| Emissions unable to be completed (8.2.2.2 (e)) | 16 |
| Nearside Rear Shock absorbers has a serious fluid leak | 15 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 15 |
| Nearside Front Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 15 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 15 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 15 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 15 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 15 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 14 |
| Offside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 13 |
| Offside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 13 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Offside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 13 |
| Nearside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 13 |