| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 567 |
| Headlamp aim out of alignment | 340 |
| Windscreen wiper does not clear the windscreen effectively | 296 |
| Brake pipe excessively corroded | 101 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 95 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 85 |
| Nearside Headlamp insecure |1.7.3| | 85 |
| Brake hose excessively deteriorated | 78 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 78 |
| Registration plate issues | 74 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 70 |
| Nearside Stop lamp not working |1.2.1b| | 63 |
| Parking brake: efficiency below requirements |3.7.B.7| | 62 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 62 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 62 |
| Offside Headlamp insecure |1.7.3| | 59 |
| Brakes imbalanced across an axle | 59 |
| Rear parking brake recording little or no effort | 58 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 57 |
| Offside Stop lamp not working |1.2.1b| | 57 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 49 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 42 |
| Horn not working |1.6.2a| | 41 |
| Emissions not tested |7.0| | 41 |
| Rear brake application uneven | 41 |
| Windscreen has damage | 41 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 35 |
| Parking brake lever has no reserve travel |3.1.6b| | 35 |
| Offside Rear fog lamp not working |1.3.2b| | 33 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 30 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 28 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Rear brake binding | 26 |
| Offside Rear Stop lamp not working |1.2.1b| | 25 |
| Windscreen wiper blade insecure | 24 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 24 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside Front Headlamp insecure |1.7.3| | 23 |
| Rear Exhaust system not adequately supported |7.1.1| | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 21 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 20 |
| Front brake disc in such a condition that it is seriously weakened | 20 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 19 |
| Service brake: efficiency below requirements |3.7.B.7| | 19 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 19 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 19 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 17 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 17 |
| Battery insecure |1.9.1| | 16 |
| Exhaust system not adequately supported |7.1.1| | 16 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 15 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 15 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 14 |
| Offside Front Headlamp insecure |1.7.3| | 14 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 14 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 13 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 13 |
| Brake load sensing valve linkage seized |3.6.E.3| | 13 |
| Rear fog lamp switch faulty |1.3.1a| | 13 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 13 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 13 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Obligatory mirror missing |8.1.1| | 12 |
| Parking brake mechanism/associated mounting prescribed area is fractured |3.1.9| | 12 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 11 |
| Centre Exhaust system not adequately supported |7.1.1| | 11 |
| Spare wheel carrier insecure |6.4.2| | 11 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 11 |
| Hazard warning switch faulty |1.4.B.1d| | 10 |
| Headlamp insecure |1.7.3| | 10 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 10 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 10 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 9 |
| Rear fog lamp tell tale not working |1.3.1b| | 9 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 9 |
| Rear fog lamp not working |1.3.2b| | 9 |
| Nearside Headlamp not working on main beam |1.7.5a| | 9 |
| Front brake application uneven | 9 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 8 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 8 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 8 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 7 |
| rear brakes release unevenly |3.7.B.4| | 7 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Offside Front coil spring fractured |2.4.C.1a| | 7 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 7 |
| Brake load sensing valve seized |3.6.E.3| | 7 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 7 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 6 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 6 |
| Offside Seat belt locking mechanism does not secure or release |5.2.5a| | 6 |
| Brake pedal spongy |3.3.B.1b| | 6 |
| Nearside Obligatory mirror missing |8.1.1| | 6 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 6 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Windscreen washer not working | 6 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 6 |
| Offside Side repeater not working |1.4.A.2c| | 6 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| front brakes release unevenly |3.7.B.4| | 6 |
| Brake performance not tested |3.7.A.1| | 5 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Obligatory mirror insecure |8.1.1| | 5 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 5 |
| Offside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |