| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 388 |
| Windscreen wiper does not clear the windscreen effectively | 382 |
| Headlamp aim out of alignment | 197 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 193 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 168 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 86 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 84 |
| Brakes imbalanced across an axle | 78 |
| Horn not working |1.6.2a| | 71 |
| Registration plate lamp issues | 65 |
| Rear brake binding | 54 |
| Brake hose excessively deteriorated | 53 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 49 |
| Service brake: efficiency below requirements |3.7.B.7| | 43 |
| Exhaust system not adequately supported |7.1.1| | 38 |
| Battery insecure |1.9.1| | 38 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 36 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 35 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 34 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 32 |
| Windscreen washer not working | 29 |
| Offside Side repeater not working |1.4.A.2c| | 29 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 29 |
| Parking brake: efficiency below requirements |3.7.B.7| | 29 |
| Registration plate issues | 27 |
| Emissions not tested |7.0| | 24 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 24 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 21 |
| Offside Stop lamp not working |1.2.1b| | 21 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 21 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 20 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 19 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Nearside Side repeater not working |1.4.A.2c| | 18 |
| Nearside Stop lamp not working |1.2.1b| | 18 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Centre Exhaust system not adequately supported |7.1.1| | 17 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 17 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Rear parking brake recording little or no effort | 16 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 16 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Hazard warning switch faulty |1.4.B.1d| | 16 |
| Rear brake application uneven | 16 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Exhaust mounting missing |7.1.1b| | 15 |
| Horn not working (7.7 (a) (ii)) | 14 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 14 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 14 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Rear Exhaust system not adequately supported |7.1.1| | 13 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 13 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 13 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 12 |
| Front brake application uneven | 12 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 12 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 11 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 11 |
| Front brake disc in such a condition that it is seriously weakened | 10 |
| Nearside Rear Stop lamp not working |1.2.1b| | 10 |
| Horn not working |7.7 |a| |ii|| | 10 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 9 |
| Offside Rear fog lamp not working |1.3.2b| | 9 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 9 |
| Emissions not tested (8.2.1.2 (d)) | 9 |
| Offside Side repeater not working |4.4.1 |a| |ii|| | 9 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 8 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 8 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 8 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 8 |
| Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 8 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 8 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Offside Front Side repeater not working |1.4.A.2c| | 7 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 7 |
| Offside Front brake disc excessively pitted |3.5.1h| | 7 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer`s specified limits |8.2.1.2 |a|| | 7 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 7 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 7 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 7 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 7 |
| Offside Front Direction indicator not working |1.4.A.2c| | 7 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 7 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 7 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 7 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 7 |
| Emissions not tested |7.3.A.1| | 7 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 6 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i|| | 6 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 6 |
| Front Exhaust system not adequately supported |7.1.1| | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Rear Suspension has inadequate clearance with the bump stop |2.4.A.1a| | 6 |
| Offside Rear Suspension has inadequate clearance with the bump stop |2.4.A.1a| | 6 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 6 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Exhaust emissions hydrocarbon content excessive |7.3.B.1b| | 6 |
| Centre Exhaust mounting missing |7.1.1b| | 6 |
| Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 6 |
| Windscreen wiper blade insecure | 6 |
| Nearside Front Seat belt insecurely fixed to the seat |5.2.1a| | 6 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 6 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 5 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 5 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Nearside Headlamp not working on main beam |1.7.5a| | 5 |
| Horn not working (7.7 (a)) | 5 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Brake load sensing valve linkage seized |3.6.E.3| | 5 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Rear fog lamp tell tale not working |1.3.1b| | 5 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 5 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 5 |
| Power steering malfunctioning |2.3.3a| | 5 |
| Windscreen has damage | 5 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Brake performance not tested |3.7.A.1| | 5 |
| Offside Front front brake binding |3.7.B.1| | 5 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturer`s specified limits |8.2.1.2 |a|| | 5 |
| Offside Front Subframe mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 5 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 5 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Brake load sensing valve seized |3.6.E.3| | 5 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 5 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Rear Mechanical brake component has restricted free movement | 5 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 5 |