| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 87 |
| Windscreen wiper does not clear the windscreen effectively | 56 |
| Headlamp aim out of alignment | 54 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 34 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 28 |
| Parking brake: efficiency below requirements |3.7.B.7| | 28 |
| Parking brake lever has no reserve travel |3.1.6b| | 28 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 28 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Rear brake binding | 20 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 18 |
| Rear parking brake recording little or no effort | 18 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 17 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 16 |
| Anti-lock braking system warning lamp indicates an ABS fault | 16 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 15 |
| Registration plate issues | 13 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 12 |
| Nearside Stop lamp not working |1.2.1b| | 12 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 11 |
| Windscreen washer not working | 10 |
| Offside Front Position lamp not working |4.2.1 |a|| | 10 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Stop lamp not working |1.2.1b| | 8 |
| Brakes imbalanced across an axle | 8 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 8 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 7 |
| Battery insecure |1.9.1| | 7 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 7 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 6 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Windscreen has damage | 6 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Centre Stop lamp not working |1.2.1b| | 5 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Rear fog lamp not working |1.3.2b| | 4 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 4 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 4 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 4 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Emissions not tested (8.2.2.2 (e)) | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 3 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 3 |
| Offside front brake binding |3.7.B.1| | 3 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Battery insecure and likely to cause a short circuit |4.13 |a| |ii|| | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 2 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 2 |
| Mechanical brake component has restricted free movement | 2 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front brake application uneven | 2 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Windscreen wiper blade insecure | 2 |
| Nearside Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Offside Steering rack gaiter insecure |2.2.D.2d| | 2 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 2 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 2 |
| Central Exhaust has a major leak of exhaust gases silencer (6.1.2 (a)) | 2 |
| Offside Front Seat belt webbing significantly weakened |7.1.2 |b| |ii|| | 2 |
| rear parking |secondary| brakes imbalanced | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 2 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Offside Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 2 |
| Offside Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Front front brake binding |3.7.B.1| | 2 |
| Exhaust has a major leak of exhaust gases centre box |6.1.2 |a|| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Rear Brake cable insecure | 2 |
| Central Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |