| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 277 |
| Headlamp aim out of alignment | 154 |
| Windscreen wiper does not clear the windscreen effectively | 138 |
| Brake hose excessively deteriorated | 60 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 56 |
| Registration plate issues | 37 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 36 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 35 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Headlamp insecure |1.7.3| | 34 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 32 |
| Brake pipe excessively corroded | 31 |
| Nearside Headlamp insecure |1.7.3| | 31 |
| Offside Stop lamp not working |1.2.1b| | 29 |
| Rear brake application uneven | 28 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 27 |
| Nearside Stop lamp not working |1.2.1b| | 26 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 21 |
| Brakes imbalanced across an axle | 20 |
| Nearside Rear Stop lamp not working |1.2.1b| | 19 |
| Emissions not tested |7.0| | 18 |
| Horn not working |1.6.2a| | 18 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Rear Exhaust system not adequately supported |7.1.1| | 17 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 17 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Offside Rear fog lamp not working |1.3.2b| | 16 |
| Offside Rear Stop lamp not working |1.2.1b| | 16 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Windscreen has damage | 14 |
| Rear brake binding | 14 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 13 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 13 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 12 |
| Fuel tank leaking |7.2.3| | 11 |
| Offside Front Headlamp insecure |1.7.3| | 11 |
| Windscreen wiper blade insecure | 11 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 10 |
| Exhaust system not adequately supported |7.1.1| | 10 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 9 |
| Rear parking brake recording little or no effort | 9 |
| Parking brake: efficiency below requirements |3.7.B.7| | 9 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 9 |
| Nearside Front Headlamp insecure |1.7.3| | 9 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 9 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Brake load sensing valve linkage seized |3.6.E.3| | 8 |
| Parking brake lever has no reserve travel |3.1.6b| | 8 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 8 |
| Offside Headlamp not working on main beam |1.7.5a| | 8 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 8 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 7 |
| Battery insecure |1.9.1| | 7 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 7 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 7 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 6 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Brake load sensing valve seized |3.6.E.3| | 6 |
| Service brake: efficiency below requirements |3.7.B.7| | 6 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 6 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Hazard warning switch faulty |1.4.B.1d| | 6 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 6 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Offside Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 5 |
| Offside Obligatory mirror missing |8.1.1| | 5 |
| Front brake application uneven | 5 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Nearside Front All position lamps not working |1.1.A.3b| | 4 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 4 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Headlamp not working on main beam |1.7.5a| | 4 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 4 |
| Headlamp insecure |1.7.3| | 4 |
| Nearside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 4 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 4 |
| Parking brake mechanism/associated mounting prescribed area is fractured |3.1.9| | 4 |
| Bonnet retaining device ineffective |8.4.2| | 4 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Front All position lamps not working |1.1.A.3b| | 3 |
| Parking brake mechanism/associated mounting prescribed area is excessively corroded |3.1.9| | 3 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 3 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 3 |
| Nearside Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| rear brakes release unevenly |3.7.B.4| | 3 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 3 |
| Indicator tell tale inoperative |1.4.A.2a| | 3 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Centre Exhaust mounting missing |7.1.1b| | 3 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Nearside Front Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 3 |
| Centre Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 3 |
| Nearside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 3 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 3 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 3 |
| Nearside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 3 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 3 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 3 |
| Headlamp switch faulty |1.7.1| | 3 |
| Offside Front brake disc excessively pitted |3.5.1h| | 3 |
| Offside Obligatory mirror insecure |8.1.1| | 3 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Rear Exhaust has a part missing |7.1.1a| | 3 |
| Nearside Front front brake juddering severely |3.7.A.2b| | 3 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Offside Rear Direction indicators not working |1.4.A.2c| | 3 |
| Nearside front brake juddering severely |3.7.A.2b| | 3 |
| Offside front brake juddering severely |3.7.A.2b| | 3 |