| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1030 |
| Windscreen wiper does not clear the windscreen effectively | 1029 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 375 |
| Front brake disc in such a condition that it is seriously weakened | 305 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 150 |
| Brakes imbalanced across an axle | 134 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 133 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 128 |
| Registration plate lamp issues | 127 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 117 |
| Windscreen washer not working | 104 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 96 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 93 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 82 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 73 |
| Registration plate issues | 70 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 64 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 56 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 53 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 53 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 51 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 51 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 49 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 43 |
| Brake pipe excessively corroded | 42 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 42 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 41 |
| Front brake excessively fluctuating | 38 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 37 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 34 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 33 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 31 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 31 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 28 |
| Offside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 28 |
| Electronic stability control warning lamp indicates a fault |7.12 |e|| | 27 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 24 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 24 |
| Nearside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 24 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 23 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 22 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 22 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 20 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Emissions not tested (8.2.1.2 (d)) | 19 |
| Offside Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 18 |
| Reversing lamp inoperative (4.6.1 (a)) | 18 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Rear Exhaust system insecure (6.1.2 (a)) | 18 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 18 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 18 |