| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 2889 |
| Headlamp aim out of alignment | 2884 |
| Brake pipe excessively corroded | 2428 |
| Registration plate lamp issues | 2067 |
| Brakes imbalanced across an axle | 945 |
| Registration plate issues | 818 |
| Parking brake: efficiency below requirements |3.7.B.7| | 739 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 611 |
| Parking brake lever has no reserve travel |3.1.6b| | 610 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 603 |
| Rear parking brake recording little or no effort | 581 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 532 |
| Rear fog lamp not working |1.3.2b| | 460 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 418 |
| Offside Rear fog lamp not working |1.3.2b| | 346 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 281 |
| Offside Stop lamp not working |1.2.1b| | 259 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 257 |
| Nearside Stop lamp not working |1.2.1b| | 238 |
| Anti-lock braking system warning lamp indicates an ABS fault | 235 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 203 |
| Horn not working |1.6.2a| | 186 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 184 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 177 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 177 |
| Rear brake binding | 174 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 166 |
| Windscreen has damage | 166 |
| Nearside Rear Leaf spring fractured |2.4.B.1a| | 161 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 145 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 142 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 142 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 135 |
| Offside Rear Shock absorbers has a serious fluid leak | 131 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 130 |
| Service brake: efficiency below requirements |3.7.B.7| | 126 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 123 |
| Front brake application uneven | 122 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 122 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 121 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 121 |
| Windscreen washer not working | 119 |
| Offside front brake binding |3.7.B.1| | 118 |
| Nearside Rear Shock absorbers has a serious fluid leak | 116 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 116 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 114 |
| Offside Rear Stop lamp not working |1.2.1b| | 113 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 111 |
| Rear brake application uneven | 110 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 109 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 109 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 109 |
| Front brake disc in such a condition that it is seriously weakened | 108 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 106 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 104 |
| Nearside Rear Stop lamp not working |1.2.1b| | 103 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 99 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 96 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 89 |
| Battery insecure |1.9.1| | 89 |
| Offside Front Position lamp not working |4.2.1 |a|| | 85 |
| Trailer electrical socket insecure |1.9.3a| | 84 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 81 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 80 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 78 |
| Nearside Front coil spring broken |2.4.C.1a| | 78 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 76 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 73 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 73 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 69 |
| Horn not working (7.7 (a) (ii)) | 68 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 68 |
| Offside Front front brake binding |3.7.B.1| | 67 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 67 |
| rear parking |secondary| brakes imbalanced | 66 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 65 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 64 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 64 |
| Windscreen wiper blade insecure | 64 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 64 |
| Power steering fluid level below minimum |2.3.1| | 64 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 63 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 61 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 60 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 60 |
| Nearside Rear Leaf spring cracked |2.4.B.1a| | 60 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 59 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 59 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 59 |
| Nearside front brake binding |3.7.B.1| | 59 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 58 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 57 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 57 |
| Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 56 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 55 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 55 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 54 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 53 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 52 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 51 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 50 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 49 |
| Horn not working (7.7 (a)) | 49 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 48 |
| Rear fog lamp missing |1.3.2a| | 48 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 46 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 46 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 46 |