| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 124 |
| Headlamp aim out of alignment | 67 |
| Brake pipe excessively corroded | 31 |
| Registration plate issues | 27 |
| Registration plate lamp issues | 20 |
| Brakes imbalanced across an axle | 17 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 9 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 6 |
| Nearside Front Shock absorbers has a serious fluid leak | 6 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Windscreen has damage | 4 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Front brake application uneven | 4 |
| Anti-lock braking system warning lamp indicates an ABS fault | 3 |
| Nearside Rear Shock absorbers has a serious fluid leak | 3 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 3 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 3 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 3 |
| Windscreen wiper blade insecure | 3 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Front Service brake excessively binding |1.2.1 |f|| | 3 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 2 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 2 |
| Offside Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear fog lamp tell tale missing |1.3.1b| | 2 |
| Offside Front Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 2 |
| Horn not working |1.6.2a| | 2 |
| Offside Rear fog lamp not working |1.3.2b| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 2 |
| Service brake effort inadequate at a wheel |1.2.1 |a| |i|| | 2 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 2 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 2 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 2 |
| Trailer electrical socket |13 pin| not operating the trailer lamps as intended |1.9.4| | 2 |
| Nearside Rear Anti-roll bar pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Windscreen wiper does not clear the windscreen effectively | 2 |