| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 802 |
| Brake pipe excessively corroded | 334 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 141 |
| Windscreen wiper does not clear the windscreen effectively | 134 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 123 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 117 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 116 |
| Registration plate lamp issues | 108 |
| Nearside Side repeater not working |1.4.A.2c| | 100 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 100 |
| Offside Side repeater not working |1.4.A.2c| | 90 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 86 |
| Service brake: efficiency below requirements |3.7.B.7| | 80 |
| Registration plate issues | 73 |
| Brakes imbalanced across an axle | 67 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 66 |
| Windscreen washer not working | 65 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 60 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 58 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 56 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 55 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 53 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 44 |
| Rear brake disc in such a condition that it is seriously weakened | 41 |
| Nearside Rear coil spring broken |2.4.C.1a| | 40 |
| Horn not working (7.7 (a) (ii)) | 39 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 38 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 37 |
| Nearside Front Shock absorbers has a serious fluid leak | 37 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 36 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 36 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 35 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 35 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 34 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 32 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 31 |
| Offside Rear coil spring broken |2.4.C.1a| | 30 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 30 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 30 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 29 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 29 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 27 |
| Front brake disc in such a condition that it is seriously weakened | 27 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 27 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Horn not working |1.6.2a| | 25 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 25 |
| Horn not working (7.7 (a)) | 24 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 23 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 22 |
| Offside Front Side repeater not working |1.4.A.2c| | 21 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 20 |
| Parking brake: efficiency below requirements |3.7.B.7| | 20 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 20 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 19 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 18 |
| Parking brake lever has no reserve travel |3.1.6b| | 17 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 17 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 17 |
| Nearside Front Side repeater not working |1.4.A.2c| | 16 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 16 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 15 |
| Nearside Headlamp insecure |1.7.3| | 15 |
| Brake performance not tested (1.2.1 (g)) | 15 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 15 |
| Offside Front Shock absorbers has a serious fluid leak | 14 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 14 |
| Offside Side repeater light intensity significantly reduced (4.4.3 (a)) | 14 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 13 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 13 |
| Offside Headlamp insecure (4.1.1 (c)) | 13 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Nearside Rear Brake lining|s| insecure |3.5.1g| | 12 |
| Rear brake binding | 12 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 12 |