| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 3891 |
| Headlamp aim out of alignment | 2411 |
| Windscreen wiper does not clear the windscreen effectively | 1531 |
| Registration plate issues | 832 |
| Brake pipe excessively corroded | 561 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 543 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 478 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 474 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 471 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 312 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 277 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 272 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 246 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 208 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 193 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 174 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 159 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 150 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 150 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 147 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 140 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 138 |
| Offside Stop lamp not working |1.2.1b| | 132 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 127 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 127 |
| Battery insecure |1.9.1| | 124 |
| Nearside Stop lamp not working |1.2.1b| | 123 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 122 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 113 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 112 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 112 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 108 |
| Front brake disc in such a condition that it is seriously weakened | 99 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 97 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 97 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 95 |
| Brakes imbalanced across an axle | 94 |
| Windscreen washer not working | 90 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 90 |
| Windscreen has damage | 90 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 89 |
| Rear brake disc in such a condition that it is seriously weakened | 87 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 82 |
| Offside Front Position lamp not working |4.2.1 |a|| | 81 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 79 |
| Anti-lock braking system warning lamp indicates an ABS fault | 79 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 77 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 75 |
| Emissions not tested (8.2.1.2 (d)) | 71 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 70 |
| Rear fog lamp not working |1.3.2b| | 70 |
| Nearside Rear Stop lamp not working |1.2.1b| | 69 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 68 |
| Parking brake lever has no reserve travel |3.1.6b| | 68 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 67 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 66 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 66 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 65 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 64 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 64 |
| Offside front brake binding |3.7.B.1| | 63 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 58 |
| Offside Rear fog lamp not working |1.3.2b| | 58 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 56 |
| Nearside Rear Shock absorbers has a serious fluid leak | 56 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 56 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 55 |
| Windscreen wiper blade insecure | 53 |
| Exhaust catalytic converter missing where one was fitted as standard (8.2.1.1 (a)) | 52 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 52 |
| Nearside front brake binding |3.7.B.1| | 51 |
| Horn not working |1.6.2a| | 51 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 50 |
| Offside Front coil spring broken |2.4.C.1a| | 50 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 48 |
| Offside Rear Stop lamp not working |1.2.1b| | 47 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 46 |
| Mechanical brake component has restricted free movement | 46 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 46 |
| Rear fog lamp tell tale not working |1.3.1b| | 45 |
| Emissions not tested |7.3.A.1| | 45 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 45 |
| Service brake: efficiency below requirements |3.7.C.1a| | 45 |
| Rear brake binding | 42 |
| Offside Inner Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 42 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 41 |
| Offside Front Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 41 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 41 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 40 |
| Nearside Front coil spring broken |2.4.C.1a| | 40 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 40 |