| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 909 |
| Headlamp aim out of alignment | 520 |
| Brake pipe excessively corroded | 240 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 182 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 155 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 141 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 137 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 103 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 100 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 99 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 95 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 92 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 91 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 89 |
| Windscreen washer not working | 89 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 87 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 87 |
| Brakes imbalanced across an axle | 73 |
| Registration plate issues | 67 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 66 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 66 |
| Registration plate lamp issues | 56 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 55 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 53 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 50 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 42 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 42 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 39 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 37 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 34 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 34 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 32 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 27 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 24 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 24 |
| Offside Stop lamp not working |1.2.1b| | 24 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 23 |
| Nearside Stop lamp not working |1.2.1b| | 21 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 21 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 20 |
| Emissions not tested (8.2.1.2 (d)) | 20 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 20 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 16 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 16 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 16 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 16 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 15 |
| Anti-lock braking system warning lamp indicates an ABS fault | 14 |
| Emissions unable to be completed (8.2.1.2 (d)) | 13 |
| Engine mounting damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 13 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Reversing lamp inoperative (4.6.1 (a)) | 12 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 12 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 12 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 12 |