| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 445 |
| Brake pipe excessively corroded | 216 |
| Windscreen wiper does not clear the windscreen effectively | 152 |
| Registration plate issues | 133 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 118 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 114 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 90 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 87 |
| Nearside Stop lamp not working |1.2.1b| | 72 |
| Front brake disc in such a condition that it is seriously weakened | 70 |
| Offside Stop lamp not working |1.2.1b| | 62 |
| Registration plate lamp issues | 51 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 48 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 43 |
| Offside Front Position lamp not working |4.2.1 |a|| | 38 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 38 |
| Offside Rear Stop lamp not working |1.2.1b| | 32 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 31 |
| Nearside Rear Stop lamp not working |1.2.1b| | 28 |
| Rear brake disc in such a condition that it is seriously weakened | 23 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 21 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 20 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 18 |
| Brakes imbalanced across an axle | 18 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 18 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 17 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 16 |
| Nearside Front Shock absorbers has a serious fluid leak | 15 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 15 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 12 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 11 |
| Offside Rear fog lamp not working |1.3.2b| | 11 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Rear parking brake recording little or no effort | 9 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 9 |
| Parking brake: efficiency below requirements |3.7.B.7| | 9 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 8 |
| Windscreen has damage | 8 |
| Front position lamp|s| not working |1.1.A.3b| | 8 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 8 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Front brake excessively fluctuating | 7 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 7 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 6 |
| Offside Front coil spring broken |2.4.C.1a| | 6 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 6 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 6 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 6 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 6 |
| Offside Front Shock absorbers has a serious fluid leak | 6 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Windscreen washer not working | 6 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 6 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 6 |