| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2244 |
| Windscreen wiper does not clear the windscreen effectively | 2035 |
| Brakes imbalanced across an axle | 609 |
| Registration plate issues | 456 |
| Brake pipe excessively corroded | 376 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 354 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 326 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 312 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 296 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 152 |
| Battery insecure |1.9.1| | 140 |
| Front brake application uneven | 138 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 136 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 132 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 131 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 129 |
| Front brake disc in such a condition that it is seriously weakened | 127 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 127 |
| Nearside Rear Shock absorbers has a serious fluid leak | 126 |
| Rear brake disc in such a condition that it is seriously weakened | 119 |
| Rear brake application uneven | 113 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 113 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 112 |
| Front brake excessively fluctuating | 103 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 98 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 97 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 96 |
| Offside Rear Shock absorbers has a serious fluid leak | 94 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 91 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 91 |
| Offside Front Position lamp not working |4.2.1 |a|| | 88 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 87 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 87 |
| Windscreen has damage | 84 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 81 |
| Parking brake: efficiency below requirements |3.7.B.7| | 80 |
| Anti-lock braking system warning lamp indicates an ABS fault | 78 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 78 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 77 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 75 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 71 |
| Rear brake binding | 65 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 64 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 62 |
| Brake pedal spongy |3.3.B.1b| | 61 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 58 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 55 |
| Windscreen washer not working | 55 |
| Registration plate lamp issues | 54 |
| Offside Rear brake caliper has restricted free movement |3.5.1k| | 53 |
| Service brake: efficiency below requirements |3.7.B.7| | 52 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 52 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 52 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 51 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 49 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 49 |
| Rear parking brake recording little or no effort | 48 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 48 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 45 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 45 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 44 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 37 |
| Driver`s seat insecure |6.2.A.1| | 36 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 36 |
| Offside rear brake excessively fluctuating |3.7.B.3| | 35 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 35 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 34 |
| Nearside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 34 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 34 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 34 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 34 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 33 |
| Offside Front Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 33 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 32 |
| Windscreen wiper blade insecure | 32 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 32 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 30 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 30 |