| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 636 |
| Headlamp aim out of alignment | 511 |
| Brakes imbalanced across an axle | 114 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 105 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 104 |
| Brake pipe excessively corroded | 91 |
| Registration plate issues | 91 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 57 |
| Nearside Rear Shock absorbers has a serious fluid leak | 54 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 48 |
| Offside Rear Shock absorbers has a serious fluid leak | 42 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 41 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 38 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 36 |
| Rear brake disc in such a condition that it is seriously weakened | 35 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 33 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 32 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 32 |
| Front brake disc in such a condition that it is seriously weakened | 31 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 30 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 28 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 28 |
| Anti-lock braking system warning lamp indicates an ABS fault | 28 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 28 |
| Offside Front Position lamp not working |4.2.1 |a|| | 26 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 26 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 25 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 25 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 24 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 24 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 23 |
| Front brake application uneven | 22 |
| Windscreen has damage | 22 |
| Windscreen washer not working | 21 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 21 |
| Front brake excessively fluctuating | 20 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 19 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 19 |
| Battery insecure |1.9.1| | 18 |
| Parking brake: efficiency below requirements |3.7.B.7| | 18 |
| Registration plate lamp issues | 15 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 15 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Rear brake application uneven | 14 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 13 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 12 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 12 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 12 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 11 |
| Brake pedal spongy |3.3.B.1b| | 11 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 10 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 10 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 10 |
| Offside rear brake excessively fluctuating |3.7.B.3| | 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 Shock absorbers has a serious fluid leak | 10 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 10 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 10 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 9 |
| Windscreen wiper blade insecure | 9 |
| Nearside rear brake excessively fluctuating |3.7.B.3| | 9 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Front Service brake lagging in operation (1.2.1 (d)) | 9 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 9 |