| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 434 |
| Brake pipe excessively corroded | 392 |
| Registration plate lamp issues | 356 |
| Registration plate issues | 187 |
| Windscreen wiper does not clear the windscreen effectively | 178 |
| Parking brake: efficiency below requirements |3.7.B.7| | 166 |
| Rear parking brake recording little or no effort | 118 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 82 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 73 |
| Nearside Side repeater not working |1.4.A.2c| | 64 |
| Offside Side repeater not working |1.4.A.2c| | 63 |
| Brake hose excessively deteriorated | 61 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 60 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 60 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 57 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 55 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 54 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 50 |
| Front brake disc in such a condition that it is seriously weakened | 50 |
| Anti-lock braking system warning lamp indicates an ABS fault | 47 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 47 |
| Rear brake binding | 45 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 43 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 43 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 41 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 41 |
| Windscreen washer not working | 37 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 37 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 36 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 34 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 33 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 33 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 32 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 31 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 30 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 28 |
| Fuel system component leaking |7.2.3| | 28 |
| Offside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 28 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 27 |
| Brakes imbalanced across an axle | 26 |
| Nearside Front Shock absorber has an excessively worn shock absorber pivot |2.7.4| | 25 |
| Nearside Front Lower Shock absorber has an excessively worn shock absorber pivot |2.7.4| | 24 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 24 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 24 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 24 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 24 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 24 |
| Parking brake lever has no reserve travel |3.1.6b| | 23 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 22 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 21 |
| Rear brake disc in such a condition that it is seriously weakened | 21 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 20 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 19 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 19 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 18 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Offside Front Side repeater not working |1.4.A.2c| | 18 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 17 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 17 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 16 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 16 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 16 |
| Nearside Front Side repeater not working |1.4.A.2c| | 15 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 15 |
| Windscreen has damage | 15 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 15 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 15 |
| Nearside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 15 |
| Rear Exhaust system not adequately supported |7.1.1| | 14 |
| Offside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 14 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 14 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 14 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 14 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 13 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 13 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Service brake: efficiency below requirements |3.7.B.7| | 13 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 13 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 12 |
| Exhaust system not adequately supported |7.1.1| | 12 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 12 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 12 |
| Horn not working |1.6.2a| | 12 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 12 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 12 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 12 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 12 |
| Offside Headlamp light intensity severely reduced (4.1.4 (a)) | 12 |
| Nearside Stop lamp not working |1.2.1b| | 12 |