| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 364 |
| Headlamp aim out of alignment | 227 |
| Rear parking brake recording little or no effort | 211 |
| Brake pipe excessively corroded | 175 |
| Brakes imbalanced across an axle | 175 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 134 |
| Service brake: efficiency below requirements |3.7.B.7| | 121 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 117 |
| Windscreen wiper does not clear the windscreen effectively | 110 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 79 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 78 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 76 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 67 |
| Brake hose excessively deteriorated | 57 |
| Registration plate issues | 50 |
| Registration plate lamp issues | 46 |
| Offside front brake binding |3.7.B.1| | 37 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 33 |
| Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b)) | 32 |
| Front brake application uneven | 31 |
| Horn not working |1.6.2a| | 31 |
| Nearside front brake binding |3.7.B.1| | 27 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 26 |
| Offside Stop lamp not working |1.2.1b| | 25 |
| Rear brake application uneven | 24 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 24 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 23 |
| Nearside Stop lamp not working |1.2.1b| | 23 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 23 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 22 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 21 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 21 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 21 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 21 |
| Offside Rear fog lamp not working |1.3.2b| | 20 |
| Rear brake binding | 19 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 19 |
| Offside Headlamp not working on main beam |1.7.5a| | 18 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 18 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 17 |
| rear brake recording little or no effort |3.7.B.5a| | 16 |
| Hazard warning switch faulty |1.4.B.1d| | 15 |
| Parking brake lever has no reserve travel |3.1.6b| | 15 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 15 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 14 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 14 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Windscreen washer not working | 13 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 13 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 13 |
| Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b|| | 13 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 13 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 13 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 13 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 12 |
| Rear brake disc in such a condition that it is seriously weakened | 12 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 12 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 12 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 12 |
| Nearside Rear Stop lamp not working |1.2.1b| | 12 |
| Front brake disc in such a condition that it is seriously weakened | 12 |
| Nearside Front front brake binding |3.7.B.1| | 11 |
| Nearside Headlamp not working on main beam |1.7.5a| | 11 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 11 |
| Offside Front front brake binding |3.7.B.1| | 11 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 11 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 10 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Nearside Front Lower Suspension arm corroded and seriously weakened |2.4.G.1| | 9 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 9 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 9 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Emissions not tested |7.0| | 9 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Offside Rear Stop lamp not working |1.2.1b| | 9 |
| Direction indicators not working |1.4.A.2c| | 9 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 8 |
| Mechanical brake component has restricted free movement | 8 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 8 |
| Offside Rear Lower Suspension arm corroded and seriously weakened |2.4.G.1| | 8 |
| Nearside Headlamp insecure |1.7.3| | 8 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 8 |
| Nearside Front Suspension arm corroded and seriously weakened |2.4.G.1| | 7 |
| Offside Side repeater not working |1.4.A.2c| | 7 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Rear brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 7 |
| Rear rear brake recording little or no effort |3.7.B.5a| | 7 |
| Offside Headlamp insecure |1.7.3| | 7 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 7 |
| Nearside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 7 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 7 |
| Nearside Rear Service brake effort inadequate at a wheel |1.2.1 |a| |i|| | 6 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Hazard warning lamps inoperative |1.4.B.1b| | 6 |
| Offside Rear Braking system leaking |3.6.A.1| | 6 |
| Offside Headlamp not working on main beam |4.1.1 |a| |ii|| | 6 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 6 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 6 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Offside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 6 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Rear Service brake effort inadequate at a wheel |1.2.1 |a| |i|| | 5 |
| Offside Front Lower Suspension arm corroded and seriously weakened |2.4.G.1| | 5 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 5 |
| Rear Exhaust system not adequately supported |7.1.1| | 5 |
| rear parking |secondary| brakes imbalanced | 5 |
| Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Rear Mechanical brake component has restricted free movement | 5 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 5 |
| Windscreen wiper blade insecure | 5 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Exhaust carbon monoxide content at idle exceeds default limits |8.2.1.2 |b|| | 5 |
| Windscreen has damage | 5 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Offside Headlamp does not operate immediately when selected on dipped beam |1.7.4a| | 5 |
| Offside Rear Suspension arm corroded and seriously weakened |2.4.G.1| | 5 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Exhaust system not adequately supported |7.1.1| | 5 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| rear brakes release unevenly |3.7.B.4| | 5 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |