| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 382 |
| Headlamp aim out of alignment | 270 |
| Brake pipe excessively corroded | 253 |
| Rear brake binding | 224 |
| Parking brake: efficiency below requirements |3.7.B.7| | 163 |
| Brakes imbalanced across an axle | 120 |
| Registration plate lamp issues | 115 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 110 |
| Rear parking brake recording little or no effort | 97 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 80 |
| Parking brake lever has no reserve travel |3.1.6b| | 78 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 74 |
| Offside Stop lamp not working |1.2.1b| | 74 |
| Nearside Stop lamp not working |1.2.1b| | 64 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 61 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 58 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 53 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 50 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 49 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 46 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 45 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 39 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 39 |
| Front brake disc in such a condition that it is seriously weakened | 37 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 37 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 37 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 34 |
| Registration plate issues | 34 |
| Nearside Rear Shock absorbers has a serious fluid leak | 31 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 30 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 30 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 30 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 29 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 29 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 28 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 28 |
| Offside Rear Stop lamp not working |1.2.1b| | 28 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 27 |
| Nearside Rear Stop lamp not working |1.2.1b| | 26 |
| Rear Mechanical brake component has restricted free movement | 24 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 24 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 24 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 24 |
| Offside Rear Shock absorbers has a serious fluid leak | 23 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 23 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 23 |
| Offside Front Position lamp not working |4.2.1 |a|| | 22 |
| Battery insecure |1.9.1| | 21 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 19 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 19 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 18 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 18 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 18 |
| Rear brake application uneven | 18 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 17 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 16 |
| Windscreen washer not working | 16 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 16 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 16 |
| Offside 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|| | 15 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 14 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 14 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 14 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 14 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 14 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 13 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 13 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 12 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 12 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Front brake excessively fluctuating | 11 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 11 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 10 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 10 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| rear parking |secondary| brakes imbalanced | 9 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 9 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Nearside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 9 |
| Brake pedal spongy |3.3.B.1b| | 9 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Windscreen wiper blade insecure | 9 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 9 |
| Service brake: efficiency below requirements |3.7.B.7| | 8 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 8 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 8 |
| Offside Front Shock absorbers has a serious fluid leak | 8 |
| Rear fog lamp not working |1.3.2b| | 8 |
| Nearside Front Upper Macpherson strut pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 8 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 8 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 8 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 8 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 8 |