| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 1756 |
| Windscreen wiper does not clear the windscreen effectively | 1152 |
| Headlamp aim out of alignment | 1040 |
| Registration plate lamp issues | 789 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 272 |
| Nearside Stop lamp not working |1.2.1b| | 213 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 210 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 206 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 192 |
| Rear Exhaust system not adequately supported |7.1.1| | 191 |
| Offside Stop lamp not working |1.2.1b| | 180 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 174 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 164 |
| Registration plate issues | 149 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 149 |
| Brakes imbalanced across an axle | 148 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 124 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 121 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 120 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 118 |
| Anti-lock braking system warning lamp indicates an ABS fault | 108 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 106 |
| Rear brake binding | 105 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 100 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 98 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 97 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 86 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 83 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 82 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 81 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 79 |
| Parking brake: efficiency below requirements |3.7.B.7| | 77 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 71 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 70 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 69 |
| Brake hose excessively deteriorated | 68 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 68 |
| Offside Rear Stop lamp not working |1.2.1b| | 67 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 66 |
| Nearside Rear Stop lamp not working |1.2.1b| | 65 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 64 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 64 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 62 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 62 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 61 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 61 |
| Exhaust system not adequately supported |7.1.1| | 58 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 58 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 55 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 53 |
| Emissions not tested |7.0| | 50 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 50 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 48 |
| Offside front brake binding |3.7.B.1| | 46 |
| Parking brake lever has no reserve travel |3.1.6b| | 45 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 43 |
| Front brake disc in such a condition that it is seriously weakened | 43 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 42 |
| Nearside front brake binding |3.7.B.1| | 41 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 41 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 41 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 41 |
| Emissions not tested (8.2.1.2 (d)) | 40 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 39 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 39 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 39 |
| Rear parking brake recording little or no effort | 37 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 37 |
| Windscreen wiper blade insecure | 37 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 37 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 36 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 36 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 35 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 35 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 34 |
| Emissions not tested |7.3.A.1| | 34 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 34 |
| Windscreen has damage | 33 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 33 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 31 |
| Battery insecure |1.9.1| | 31 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 31 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 30 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 30 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 30 |
| Offside Front Position lamp not working |4.2.1 |a|| | 29 |
| Front brake application uneven | 29 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 29 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 28 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 28 |
| Front brake excessively fluctuating | 28 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 28 |
| Nearside Front Service brake excessively binding |1.2.1 |f|| | 27 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 27 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 27 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 26 |
| Service brake: efficiency below requirements |3.7.B.7| | 26 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 24 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 24 |
| Windscreen washer not working | 23 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 23 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 23 |
| Rear Mechanical brake component has restricted free movement | 22 |
| Rear fog lamp not working |1.3.2b| | 22 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 22 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 22 |
| Rear brake disc in such a condition that it is seriously weakened | 22 |
| Offside Rear fog lamp not working |1.3.2b| | 21 |
| Offside Rear Exhaust system not adequately supported |7.1.1| | 21 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 21 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 21 |
| Hazard warning switch faulty |1.4.B.1d| | 21 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 21 |