| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 372 |
| Windscreen wiper does not clear the windscreen effectively | 324 |
| Brake pipe excessively corroded | 279 |
| Headlamp aim out of alignment | 201 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 113 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 105 |
| Offside Stop lamp not working |1.2.1b| | 104 |
| Nearside Stop lamp not working |1.2.1b| | 92 |
| Registration plate issues | 92 |
| Brake hose excessively deteriorated | 83 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 59 |
| Brakes imbalanced across an axle | 57 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 54 |
| Offside Rear Stop lamp not working |1.2.1b| | 43 |
| Nearside Rear Stop lamp not working |1.2.1b| | 43 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 40 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 39 |
| Offside Rear fog lamp not working |1.3.2b| | 34 |
| Windscreen has damage | 34 |
| Parking brake: efficiency below requirements |3.7.B.7| | 33 |
| Horn not working |1.6.2a| | 33 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 31 |
| Service brake: efficiency below requirements |3.7.B.7| | 31 |
| Rear parking brake recording little or no effort | 27 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Battery insecure |1.9.1| | 23 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 23 |
| Rear fog lamp not working |1.3.2b| | 21 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 21 |
| Rear Exhaust system not adequately supported |7.1.1| | 20 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Windscreen wiper blade insecure | 19 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 19 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 19 |
| Parking brake lever has no reserve travel |3.1.6b| | 18 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 18 |
| Rear fog lamp tell tale not working |1.3.1b| | 16 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Front brake application uneven | 15 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 15 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 14 |
| Rear brake binding | 13 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Front position lamp|s| not working |1.1.A.3b| | 12 |
| Rear Stop lamp not working |1.2.1b| | 12 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 10 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 10 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 10 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 10 |
| Nearside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 10 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 10 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 9 |
| Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 9 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 9 |
| Emissions not tested |7.0| | 9 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 8 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 8 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 8 |
| Nearside front brake binding |3.7.B.1| | 8 |
| Offside Headlamp insecure |1.7.3| | 8 |
| Offside front brake binding |3.7.B.1| | 8 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 7 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Nearside Seat belt locking mechanism does not secure or release |5.2.5a| | 7 |
| Brake load sensing valve linkage seized |3.6.E.3| | 7 |
| Nearside Front Direction indicator incomplete |1.5.A1b| | 7 |
| Nearside Front Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 7 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside Front position lamp|s| insecure |1.1.A.3a| | 7 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 7 |
| Offside Front Upper Ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 6 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 6 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 6 |
| Nearside Headlamp insecure |1.7.3| | 6 |
| Power steering malfunctioning |2.3.3a| | 6 |
| Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Offside Front Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 6 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 6 |
| Brake hose damaged | 6 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 6 |
| Rear brake application uneven | 6 |
| Hazard warning switch faulty |1.4.B.1d| | 5 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 5 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 5 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 5 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Nearside Front front brake binding |3.7.B.1| | 5 |
| Stop lamp not working |1.2.1b| | 5 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 5 |
| Brake load sensing valve linkage defective and function impaired |3.6.E.3| | 5 |
| Nearside Front Direction indicator insecure |1.4.A.2b| | 5 |
| Spare wheel carrier insecure |6.4.2| | 5 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 5 |