| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 529 |
| Headlamp aim out of alignment | 351 |
| Brake pipe excessively corroded | 330 |
| Registration plate lamp issues | 290 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 254 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 210 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 133 |
| Registration plate issues | 128 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 126 |
| Rear Exhaust system not adequately supported |7.1.1| | 126 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 124 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 116 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 114 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 92 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 87 |
| Rear parking brake recording little or no effort | 83 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 82 |
| Brakes imbalanced across an axle | 78 |
| Rear brake binding | 76 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 70 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 69 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 68 |
| Nearside Stop lamp not working |1.2.1b| | 65 |
| Offside Stop lamp not working |1.2.1b| | 64 |
| Horn not working |1.6.2a| | 63 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 63 |
| Parking brake: efficiency below requirements |3.7.B.7| | 60 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 58 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 55 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 55 |
| Parking brake lever has no reserve travel |3.1.6b| | 53 |
| Exhaust system not adequately supported |7.1.1| | 52 |
| Emissions not tested |7.0| | 50 |
| Offside Rear fog lamp not working |1.3.2b| | 50 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 47 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 46 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 46 |
| Offside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 45 |
| Windscreen has damage | 43 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 43 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 37 |
| Front brake disc in such a condition that it is seriously weakened | 36 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 34 |
| Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 33 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 33 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 31 |
| Rear Exhaust mounting missing |7.1.1b| | 30 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 29 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 29 |
| Offside Front brake disc excessively pitted |3.5.1h| | 29 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 28 |
| Offside front brake binding |3.7.B.1| | 28 |
| Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b| | 27 |
| Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 25 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 25 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 24 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 22 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 22 |
| Nearside Rear Stop lamp not working |1.2.1b| | 22 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 21 |
| Rear fog lamp not working |1.3.2b| | 20 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 20 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 20 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 20 |
| Brake hose excessively deteriorated | 20 |
| Nearside front brake binding |3.7.B.1| | 20 |
| Offside Rear Stop lamp not working |1.2.1b| | 20 |
| Lower Steering column universal joint has excessive play |2.1.5| | 19 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 19 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 18 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 18 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 18 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 17 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 17 |
| Fuel cap/sealing device does not fasten securely by positive means |7.2.4b| | 16 |
| Rear brake application uneven | 16 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 15 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 15 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 15 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 15 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 15 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 14 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 14 |
| Bonnet cannot be secured in the closed position |8.4.1| | 13 |
| Nearside Headlamp insecure |1.7.3| | 13 |
| Steering column universal joint has excessive play |2.1.5| | 13 |
| Fuel cap/sealing device missing |7.2.4a| | 13 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 13 |
| Front brake application uneven | 12 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Front brake disc excessively pitted |3.5.1h| | 12 |
| Offside Rear position lamp|s| incorrect colour |1.1.A.3e| | 12 |
| Nearside Rear position lamp|s| incorrect colour |1.1.A.3e| | 12 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 12 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 11 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 11 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 11 |
| Offside Headlamp insecure |1.7.3| | 11 |
| Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 11 |
| Offside Headlamp not working on main beam |1.7.5a| | 11 |
| Offside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 11 |
| Nearside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 11 |
| Nearside Side repeater not working |1.4.A.2c| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Service brake: efficiency below requirements |3.7.B.7| | 10 |
| Nearside Rear Exhaust system not adequately supported |7.1.1| | 10 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 10 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 10 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 10 |
| Windscreen wiper blade insecure | 10 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 10 |
| Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 10 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 9 |
| Rear Mechanical brake component has restricted free movement | 9 |
| Offside Front front brake binding |3.7.B.1| | 9 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 9 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 9 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 9 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Offside Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Rear Stop lamp not working |1.2.1b| | 9 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 9 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 9 |
| Rear Rear fog lamp not working |1.3.2b| | 9 |
| Offside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 9 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 9 |
| Nearside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 9 |
| Nearside Front front brake binding |3.7.B.1| | 9 |