| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 128 |
| Windscreen wiper does not clear the windscreen effectively | 123 |
| Headlamp aim out of alignment | 76 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 69 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Parking brake: efficiency below requirements |3.7.B.7| | 50 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 50 |
| Parking brake lever has no reserve travel |3.1.6b| | 48 |
| Rear brake binding | 40 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 36 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 24 |
| Rear parking brake recording little or no effort | 23 |
| Anti-lock braking system warning lamp indicates an ABS fault | 20 |
| Offside Stop lamp not working |1.2.1b| | 18 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 18 |
| Brakes imbalanced across an axle | 17 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 17 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 15 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 15 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 14 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 14 |
| Registration plate issues | 13 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Windscreen washer not working | 13 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 12 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 11 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 11 |
| Nearside Stop lamp not working |1.2.1b| | 11 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 11 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Horn not working (7.7 (a)) | 10 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 10 |
| Windscreen has damage | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Front front brake binding |3.7.B.1| | 7 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 7 |
| Offside Front Position lamp not working |4.2.1 |a|| | 7 |
| Offside Rear fog lamp not working |1.3.2b| | 7 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Rear Mechanical brake component has restricted free movement | 7 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Fuel system component leaking |7.2.3| | 6 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 6 |
| Nearside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Offside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 6 |
| Front brake disc in such a condition that it is seriously weakened | 6 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 6 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Rear Stop lamp not working |1.2.1b| | 5 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Offside Front Road wheel fixing missing (5.2.1 (a) (i)) | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 5 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 4 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Battery insecure |1.9.1| | 4 |
| Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 4 |
| Central Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Rear brake disc in such a condition that it is seriously weakened | 4 |
| Trailer electrical socket |13 pin| not operating the trailer lamps as intended |1.9.4| | 4 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 4 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 4 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Battery insecure and likely to cause a short circuit |4.13 |a| |ii|| | 3 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 3 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 3 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Service brake: efficiency below requirements |3.7.C.1a| | 3 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 3 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 3 |
| Nearside Front Road wheel fixing missing (5.2.1 (a) (i)) | 3 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 3 |
| Nearside Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 3 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 3 |
| Nearside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 3 |
| Offside Rear Road wheel fixing missing (5.2.1 (a) (i)) | 3 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Nearside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 3 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Offside front brake binding |3.7.B.1| | 3 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| rear parking |secondary| brakes imbalanced | 3 |