| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 826 |
| Headlamp aim out of alignment | 702 |
| Registration plate lamp issues | 645 |
| Brake pipe excessively corroded | 302 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 217 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 217 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 212 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 197 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 189 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 170 |
| Brakes imbalanced across an axle | 132 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 131 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 109 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 99 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 83 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 78 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 76 |
| Rear brake disc in such a condition that it is seriously weakened | 75 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 69 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 65 |
| Parking brake: efficiency below requirements |3.7.B.7| | 64 |
| Registration plate issues | 62 |
| Offside Front Position lamp not working |4.2.1 |a|| | 60 |
| Front brake disc in such a condition that it is seriously weakened | 58 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 54 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 54 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 54 |
| Windscreen washer not working | 51 |
| Brake hose excessively deteriorated | 50 |
| Offside Front coil spring broken |2.4.C.1a| | 49 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 47 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 46 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 46 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 44 |
| Nearside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 44 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 42 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 38 |
| Anti-lock braking system warning lamp indicates an ABS fault | 37 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 36 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 33 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 33 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 32 |
| Rear brake binding | 32 |
| Parking brake lever has no reserve travel |3.1.6b| | 31 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 30 |
| Rear parking brake recording little or no effort | 30 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 30 |
| Nearside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 30 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 29 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 27 |
| Offside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 26 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 25 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 25 |
| Nearside Side repeater incorrect colour (4.4.3 (a)) | 25 |
| Front brake excessively fluctuating | 25 |
| Windscreen has damage | 25 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 24 |
| Offside Side repeater incorrect colour (4.4.3 (a)) | 24 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 24 |
| Nearside Front coil spring broken |2.4.C.1a| | 24 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 23 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 21 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 21 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 20 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 20 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 20 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 20 |
| Nearside Front Outer Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 19 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 19 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 19 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Offside Front Outer Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 18 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 18 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 17 |
| 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)) | 17 |
| Front brake application uneven | 17 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 17 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 16 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 15 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 15 |
| Battery insecure |1.9.1| | 15 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 15 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 15 |