| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 229 |
| Headlamp aim out of alignment | 187 |
| Brake pipe excessively corroded | 160 |
| Registration plate lamp issues | 87 |
| Registration plate issues | 35 |
| Brakes imbalanced across an axle | 32 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 31 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 30 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 30 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 28 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 24 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 22 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 18 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 17 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 14 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 13 |
| Front brake excessively fluctuating | 13 |
| Windscreen washer not working | 13 |
| Parking brake: efficiency below requirements |3.7.B.7| | 13 |
| Rear parking brake recording little or no effort | 13 |
| Front brake disc in such a condition that it is seriously weakened | 12 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 12 |
| Parking brake lever has no reserve travel |3.1.6b| | 11 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Offside Stop lamp not working |1.2.1b| | 10 |
| Emissions not tested (8.2.2.2 (e)) | 10 |
| Anti-lock braking system warning lamp indicates an ABS fault | 10 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 10 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Stop lamp not working |1.2.1b| | 9 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 9 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 9 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 8 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 8 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 8 |
| Nearside Front Shock absorbers has a serious fluid leak | 8 |
| Brake hose excessively deteriorated | 8 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 6 |
| Rear brake disc in such a condition that it is seriously weakened | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 6 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Mechanical brake component has restricted free movement | 6 |
| Offside front brake binding |3.7.B.1| | 6 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 5 |
| Offside Front Service brake excessively fluctuating (1.2.1 (e)) | 5 |
| Windscreen has damage | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 5 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 5 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 4 |
| Front brake application uneven | 4 |
| Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii)) | 4 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 4 |
| Nearside Rear coil spring broken |2.4.C.1a| | 4 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Offside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) | 4 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Exhaust system insecure (6.1.2 (a)) | 4 |
| Offside Front Shock absorbers has a serious fluid leak | 4 |
| Rear brake binding | 4 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 4 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 4 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |