| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 451 |
| Windscreen wiper does not clear the windscreen effectively | 340 |
| Headlamp aim out of alignment | 321 |
| Brake pipe excessively corroded | 149 |
| Brake hose excessively deteriorated | 148 |
| Registration plate issues | 105 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 48 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 47 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 44 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 35 |
| Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 34 |
| Windscreen washer not working | 30 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 24 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 24 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 24 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 23 |
| Parking brake: efficiency below requirements |3.7.B.7| | 22 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 20 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 20 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Anti-lock braking system warning lamp indicates an ABS fault | 17 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 17 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Electronic parking brake warning indicates a malfunction |3.1.7| | 16 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 16 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 15 |
| Rear parking brake recording little or no effort | 15 |
| Offside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 15 |
| Offside Front Position lamp not working |4.2.1 |a|| | 14 |
| Nearside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 14 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 14 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 13 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Offside Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 13 |
| Brakes imbalanced across an axle | 12 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 12 |
| Electronic parking brake warning indicates a malfunction (1.1.6 (e)) | 12 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 12 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 11 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Offside Rear Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 11 |
| Rear brake disc in such a condition that it is seriously weakened | 10 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 10 |
| Nearside Front Road wheel cracked |4.2.A.1a| | 10 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 9 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Windscreen has damage | 8 |
| Bonnet retaining device ineffective |8.4.2| | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Offside Rear Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 8 |
| Nearside Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Nearside Front Shock absorber has an excessively worn bush |2.7.4| | 7 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 7 |
| Windscreen wiper blade insecure | 7 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 7 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Rear Shock absorbers has an excessively worn bush (5.3.2 (c)) | 7 |
| Nearside Front Road wheel fractured (5.2.2 (a)) | 7 |
| Offside Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 7 |
| Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 7 |
| Nearside Rear Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 7 |