| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 517 |
| Headlamp aim out of alignment | 359 |
| Registration plate lamp issues | 336 |
| Brake pipe excessively corroded | 309 |
| Rear brake binding | 292 |
| Parking brake: efficiency below requirements |3.7.B.7| | 265 |
| Rear parking brake recording little or no effort | 164 |
| Brakes imbalanced across an axle | 144 |
| Parking brake lever has no reserve travel |3.1.6b| | 141 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 136 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 107 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 107 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 93 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 73 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 61 |
| Anti-lock braking system warning lamp indicates an ABS fault | 56 |
| Registration plate issues | 54 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 53 |
| Front brake disc in such a condition that it is seriously weakened | 51 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 47 |
| Nearside Stop lamp not working |1.2.1b| | 47 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 46 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 44 |
| Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 43 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Offside Rear Shock absorbers has a serious fluid leak | 42 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 42 |
| Offside Rear coil spring broken |2.4.C.1a| | 41 |
| Nearside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 40 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 38 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 38 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 38 |
| Offside Stop lamp not working |1.2.1b| | 37 |
| Rear brake application uneven | 34 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 34 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 33 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 32 |
| Rear Mechanical brake component has restricted free movement | 32 |
| Battery insecure |1.9.1| | 30 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 28 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 26 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 25 |
| Nearside Rear Shock absorbers has a serious fluid leak | 25 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 25 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 25 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 24 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 23 |
| Nearside Rear Stop lamp not working |1.2.1b| | 23 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 23 |
| Rear fog lamp not working |1.3.2b| | 22 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 22 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Fuel system component leaking |7.2.3| | 22 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 22 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 22 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 21 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 21 |
| Windscreen washer not working | 19 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 19 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Windscreen wiper blade insecure | 19 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 19 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 18 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 18 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 18 |
| Nearside Front Lower Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 18 |
| Front brake excessively fluctuating | 18 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 18 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Offside Front Position lamp not working |4.2.1 |a|| | 17 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 16 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 16 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 16 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 16 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 15 |
| Offside Front Lower Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 15 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Nearside Rear coil spring broken |2.4.C.1a| | 15 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 15 |
| Offside Headlamp insecure |1.7.3| | 14 |
| Offside Rear Stop lamp not working |1.2.1b| | 14 |
| Brake hose excessively deteriorated | 14 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 13 |
| Rear Exhaust system not adequately supported |7.1.1| | 13 |
| Offside Front coil spring broken |2.4.C.1a| | 13 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 13 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 13 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 13 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Front brake application uneven | 12 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 11 |
| Brake pedal spongy |3.3.B.1b| | 11 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 11 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 11 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 11 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 11 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 10 |
| Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 10 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 10 |
| Nearside Front Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 10 |
| Service brake: efficiency below requirements |3.7.B.7| | 10 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 10 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 10 |
| Horn not working |1.6.2a| | 10 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 10 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Windscreen has damage | 9 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 9 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |