| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 333 |
| Headlamp aim out of alignment | 276 |
| Registration plate lamp issues | 198 |
| Brake pipe excessively corroded | 93 |
| Anti-lock braking system warning lamp indicates an ABS fault | 57 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 46 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 42 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 41 |
| Brakes imbalanced across an axle | 37 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 33 |
| Offside Stop lamp not working |1.2.1b| | 33 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 31 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 31 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 25 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 24 |
| Registration plate issues | 24 |
| Nearside Stop lamp not working |1.2.1b| | 21 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 20 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 18 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Parking brake lever has no reserve travel |3.1.6b| | 16 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 15 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 15 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 15 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 14 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 13 |
| Windscreen has damage | 12 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn |5.3.4 |a| |i|| | 12 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 12 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 11 |
| Nearside Rear Stop lamp not working |1.2.1b| | 11 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 11 |
| Windscreen washer not working | 11 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 10 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 10 |
| Offside Front Position lamp not working |4.2.1 |a|| | 9 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Offside Rear Stop lamp not working |1.2.1b| | 9 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 9 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 9 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 8 |
| Offside Front Anti-roll bar linkage fractured (5.3.3 (b) (ii)) | 8 |
| Parking brake: efficiency below requirements |3.7.B.7| | 8 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 8 |
| Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f)) | 8 |
| Front brake disc in such a condition that it is seriously weakened | 7 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 7 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Battery insecure |1.9.1| | 7 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Nearside Front Anti-roll bar linkage fractured (5.3.3 (b) (ii)) | 6 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Stop lamp not working |1.2.1b| | 6 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 6 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users (8.2.2.2 (c)) | 6 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 5 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 5 |
| Exhaust emissions exceed default limit of 1.5m-1 |8.2.2.2 |b|| | 5 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 5 |
| Brake hose excessively deteriorated | 5 |
| Nearside Front Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 4 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 4 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 4 |
| Horn not working |1.6.2a| | 4 |
| Trailer electrical socket damaged so that lead cannot be securely connected |1.9.3b| | 4 |
| Nearside Side repeater not working |1.4.A.2c| | 4 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 4 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 4 |
| Nearside Front Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Rear brake binding | 4 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 4 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Offside Front Anti-roll bar pin or bush excessively worn |5.3.4 |a| |i|| | 4 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |