| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1045 |
| Headlamp aim out of alignment | 978 |
| Windscreen wiper does not clear the windscreen effectively | 969 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 372 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 372 |
| Brake pipe excessively corroded | 360 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 233 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 209 |
| Registration plate issues | 198 |
| Brakes imbalanced across an axle | 120 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 120 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 117 |
| Offside Front Position lamp not working |4.2.1 |a|| | 110 |
| Windscreen washer not working | 98 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 96 |
| Offside Side repeater not working |1.4.A.2c| | 74 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 73 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 70 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 70 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 69 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 69 |
| Nearside Side repeater not working |1.4.A.2c| | 67 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 63 |
| Parking brake: efficiency below requirements |3.7.B.7| | 62 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 61 |
| Rear brake disc in such a condition that it is seriously weakened | 61 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 58 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 58 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 56 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 54 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 54 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 50 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 47 |
| Rear brake binding | 46 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 46 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 45 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 45 |
| Nearside Stop lamp not working |1.2.1b| | 44 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 42 |
| Front brake disc in such a condition that it is seriously weakened | 42 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 42 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 41 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 41 |
| Rear parking brake recording little or no effort | 41 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 40 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 38 |
| Anti-lock braking system warning lamp indicates an ABS fault | 34 |
| Centre Stop lamp not working |1.2.1b| | 34 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 33 |
| Nearside Side repeater not working |4.4.1 |a| |ii|| | 33 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 31 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 31 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 31 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 30 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 30 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 30 |
| Electronic parking brake warning indicates a malfunction (1.1.6 (e)) | 30 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 28 |
| Offside Stop lamp not working |1.2.1b| | 28 |
| Offside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 27 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 26 |
| Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 25 |
| Windscreen wiper blade insecure | 25 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 25 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 25 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 25 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 24 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Nearside Headlamp not working on main beam |1.7.5a| | 23 |