| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 232 |
| Windscreen wiper does not clear the windscreen effectively | 221 |
| Headlamp aim out of alignment | 158 |
| Horn not working |1.6.2a| | 84 |
| Brakes imbalanced across an axle | 69 |
| Registration plate lamp issues | 44 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 35 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 29 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 27 |
| Rear brake binding | 26 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 25 |
| Windscreen washer not working | 24 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 23 |
| Battery insecure |1.9.1| | 22 |
| Horn not working (7.7 (a)) | 20 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Exhaust system not adequately supported |7.1.1| | 17 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 15 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 14 |
| Registration plate issues | 14 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 13 |
| Offside Stop lamp not working |1.2.1b| | 13 |
| Emissions not tested |7.0| | 12 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 12 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 12 |
| Nearside Stop lamp not working |1.2.1b| | 12 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 12 |
| Offside Rear fog lamp not working |1.3.2b| | 11 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 11 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 11 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 10 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 10 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Horn not working (7.7 (a) (ii)) | 10 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 9 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 9 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 9 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 9 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Nearside front brake binding |3.7.B.1| | 8 |
| Front brake application uneven | 8 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 8 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 7 |
| Parking brake: efficiency below requirements |3.7.B.7| | 7 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 6 |
| Nearside Front front brake binding |3.7.B.1| | 6 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 6 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 6 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 6 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Offside front brake binding |3.7.B.1| | 6 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 6 |
| Horn not working |7.7 |a| |ii|| | 6 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Rear Suspension has inadequate clearance with the bump stop |2.4.A.1a| | 5 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 5 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner wheel arch (5.3.6 (a) (i)) | 5 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Brake load sensing valve seized |3.6.E.3| | 5 |
| Windscreen wiper blade insecure | 5 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 5 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Nearside Side repeater not working |1.4.A.2c| | 5 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Rear Suspension has inadequate clearance with the bump stop |2.4.A.1a| | 4 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 4 |
| Rear parking brake recording little or no effort | 4 |
| Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 4 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Centre Exhaust mounting missing |7.1.1b| | 4 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 4 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner wheel arch |5.3.6 |a| |i|| | 4 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Rear Inner Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill (5.3.6 (a) (i)) | 4 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 4 |
| Nearside Headlamp not working on main beam |1.7.5a| | 4 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 4 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 4 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 4 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 4 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 4 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner sill (5.3.6 (a) (i)) | 4 |
| Exhaust system insecure (6.1.2 (a)) | 4 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 4 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded outer sill |2.4.A.3| | 4 |
| Brake hose excessively deteriorated | 4 |
| Centre Exhaust system not adequately supported |7.1.1| | 4 |