| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 171 |
| Parking brake: efficiency below requirements |3.7.B.7| | 144 |
| Headlamp aim out of alignment | 125 |
| Windscreen wiper does not clear the windscreen effectively | 123 |
| Rear parking brake recording little or no effort | 82 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 48 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 33 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Registration plate issues | 31 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 28 |
| Brake pipe excessively corroded | 26 |
| Brakes imbalanced across an axle | 25 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 21 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 19 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 17 |
| Nearside Stop lamp not working |1.2.1b| | 17 |
| Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 15 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Parking brake lever has no reserve travel |3.1.6b| | 11 |
| Rear brake binding | 11 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 11 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 11 |
| Offside Stop lamp not working |1.2.1b| | 10 |
| Service brake: efficiency below requirements |3.7.B.7| | 9 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Nearside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 8 |
| Front brake disc in such a condition that it is seriously weakened | 8 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 8 |
| Offside Front position lamp|s| not in good working order |function impaired| |1.1.4a| | 7 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Rear brake disc in such a condition that it is seriously weakened | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Rear brake application uneven | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 6 |
| Nearside Rear Stop lamp not working |1.2.1b| | 6 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 5 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Windscreen has damage | 5 |
| Nearside Front Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Offside Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 5 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Driver`s seat insecure |6.2.A.1| | 4 |
| Emissions not tested |7.0| | 4 |
| Offside front brake binding |3.7.B.1| | 4 |
| Battery insecure |1.9.1| | 4 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 4 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Front Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 4 |
| Windscreen wiper blade insecure | 4 |
| Nearside Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 4 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Offside Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 4 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 3 |
| Front brake application uneven | 3 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Nearside rear brake excessively fluctuating |3.7.B.3| | 3 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Nearside Front Shock absorbers has a serious fluid leak | 3 |
| rear parking |secondary| brakes imbalanced | 3 |
| Offside Headlamp not working on main beam |1.7.5a| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Mechanical brake component has restricted free movement | 3 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |