| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 242 |
| Brake pipe excessively corroded | 232 |
| Headlamp aim out of alignment | 137 |
| Rear brake binding | 114 |
| Registration plate lamp issues | 94 |
| Brakes imbalanced across an axle | 68 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 66 |
| Parking brake: efficiency below requirements |3.7.B.7| | 59 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 46 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 41 |
| Parking brake lever has no reserve travel |3.1.6b| | 36 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 34 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 34 |
| Rear parking brake recording little or no effort | 31 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 26 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 25 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 23 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 22 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 22 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 19 |
| Front brake disc in such a condition that it is seriously weakened | 18 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 17 |
| Nearside Stop lamp not working |1.2.1b| | 16 |
| Offside Stop lamp not working |1.2.1b| | 15 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 15 |
| Offside Rear Shock absorbers has a serious fluid leak | 15 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 15 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 15 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 14 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 13 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 13 |
| Registration plate issues | 13 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 13 |
| Windscreen washer not working | 13 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 13 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Rear Mechanical brake component has restricted free movement | 12 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 12 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 12 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 12 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Nearside Rear Shock absorbers has a serious fluid leak | 9 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 8 |
| Offside Rear coil spring broken |2.4.C.1a| | 8 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Offside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 8 |
| Nearside Rear Stop lamp not working |1.2.1b| | 8 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 8 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 8 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 7 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Offside Rear Stop lamp not working |1.2.1b| | 7 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 7 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Fuel system component leaking |7.2.3| | 6 |
| Anti-lock braking system warning lamp indicates an ABS fault | 6 |
| Nearside Headlamp insecure |1.7.3| | 6 |
| Offside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 6 |
| Nearside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 6 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Offside Front Position lamp not working |4.2.1 |a|| | 6 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 6 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 6 |
| Windscreen wiper blade insecure | 5 |
| Brake pedal spongy |3.3.B.1b| | 5 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 5 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 5 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 5 |
| Offside Front coil spring broken |2.4.C.1a| | 5 |
| Emissions not tested (8.2.2.2 (e)) | 5 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 5 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 4 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 4 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 4 |
| Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Battery insecure |1.9.1| | 4 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 4 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 4 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 4 |
| Rear brake application uneven | 4 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 4 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |