| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1198 |
| Headlamp aim out of alignment | 813 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 225 |
| Brake pipe excessively corroded | 196 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 166 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 163 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 158 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 152 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 150 |
| Windscreen washer not working | 146 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 134 |
| Registration plate issues | 134 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 129 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 121 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 119 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 115 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 102 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 101 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 98 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 95 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 78 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 72 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 64 |
| Registration plate lamp issues | 60 |
| Brakes imbalanced across an axle | 59 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 58 |
| Emissions not tested (8.2.1.2 (d)) | 51 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 50 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 48 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 43 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 43 |
| Emissions unable to be completed (8.2.1.2 (d)) | 38 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 36 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 33 |
| Anti-lock braking system warning lamp indicates an ABS fault | 33 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 33 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 31 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 28 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 27 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 25 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 25 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 22 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 21 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 20 |
| Reversing lamp inoperative (4.6.1 (a)) | 20 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 19 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 19 |
| Nearside Stop lamp not working |1.2.1b| | 17 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 17 |
| Exhaust emissions likely to be affected by an exhaust leak |8.2.1.1 |b|| | 16 |