| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 127 |
| Windscreen wiper does not clear the windscreen effectively | 107 |
| Headlamp aim out of alignment | 39 |
| Brakes imbalanced across an axle | 38 |
| Brake pipe excessively corroded | 34 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 32 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 31 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 24 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 22 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 17 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 15 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 14 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 14 |
| Offside Front Position lamp not working |4.2.1 |a|| | 13 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Registration plate issues | 12 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 11 |
| Centre Stop lamp not working |1.2.1b| | 10 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 10 |
| Offside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Windscreen washer not working | 10 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 9 |
| Front position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 8 |
| Central Stop lamp not working |1.2.1b| | 7 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Rear parking brake recording little or no effort | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 6 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Windscreen wiper blade insecure | 6 |
| Front brake disc in such a condition that it is seriously weakened | 6 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 5 |
| Windscreen has damage | 5 |
| Horn not working (7.7 (a)) | 5 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Hazard warning switch faulty |1.4.B.1d| | 5 |
| Horn not working |1.6.2a| | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 4 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Upper Stop lamp not working |1.2.1b| | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Battery insecure |1.9.1| | 4 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 4 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Rear brake application uneven | 3 |
| Exhaust emissions exceed default limit of 1.5m-1 |8.2.2.2 |b|| | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Rear Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Anti-lock braking system warning lamp indicates an ABS fault | 3 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 2 |
| Offside Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 2 |
| Nearside Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 2 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 2 |
| Front Front position lamp|s| not working both |1.1.A.3b| | 2 |
| Front position lamp|s| not working both |1.1.A.3b| | 2 |
| Offside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Front Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 2 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Obligatory mirror insecure |3.3 |b| |ii|| | 2 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear fog lamp not working |1.3.2b| | 2 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Rear Hydraulic brake cylinder leaking hydraulic fluid (1.1.16 (b) (i)) | 2 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Nearside Rear Parking brake inoperative on one side |1.4.1 |a|| | 2 |
| Central Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Front brake excessively fluctuating | 2 |
| Nearside Rear rear brake excessively fluctuating |3.7.B.3| | 2 |
| Offside Rear rear brake excessively fluctuating |3.7.B.3| | 2 |
| Centre Rear Upper Stop lamp not working |1.2.1b| | 2 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Nearside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Seat belt locking mechanism does not secure or release |5.2.5a| | 2 |
| Nearside Rear Anti-roll bar linkage worn and seriously weakened |2.4.G.1| | 2 |
| Nearside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Offside Rear Anti-roll bar linkage worn and seriously weakened |2.4.G.1| | 2 |