| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 340 |
| Registration plate lamp issues | 185 |
| Windscreen wiper does not clear the windscreen effectively | 166 |
| Brake pipe excessively corroded | 160 |
| Parking brake: efficiency below requirements |3.7.B.7| | 141 |
| Service brake: efficiency below requirements |3.7.B.7| | 101 |
| Rear brake binding | 80 |
| Brakes imbalanced across an axle | 79 |
| Brake hose excessively deteriorated | 70 |
| Exhaust system not adequately supported |7.1.1| | 68 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 66 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 62 |
| Horn not working |1.6.2a| | 61 |
| Rear parking brake recording little or no effort | 55 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 55 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 54 |
| Offside Headlamp insecure |1.7.3| | 53 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 51 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 50 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 46 |
| Offside Rear fog lamp not working |1.3.2b| | 43 |
| Nearside Headlamp insecure |1.7.3| | 42 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 41 |
| Battery insecure |1.9.1| | 41 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 40 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 36 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 35 |
| Nearside Headlamp not working on main beam |1.7.5a| | 34 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 31 |
| Registration plate issues | 31 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 30 |
| Fuel system component leaking |7.2.3| | 29 |
| Offside Headlamp not working on main beam |1.7.5a| | 29 |
| Offside Front Headlamp insecure |1.7.3| | 26 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 26 |
| Offside Stop lamp not working |1.2.1b| | 26 |
| Rear Exhaust system not adequately supported |7.1.1| | 25 |
| Brake load sensing valve linkage seized |3.6.E.3| | 24 |
| Nearside Stop lamp not working |1.2.1b| | 24 |
| Nearside Front Headlamp insecure |1.7.3| | 23 |
| Offside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 22 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 22 |
| Rear fog lamp not working |1.3.2b| | 22 |
| Centre Exhaust system not adequately supported |7.1.1| | 22 |
| Front brake disc in such a condition that it is seriously weakened | 22 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 21 |
| Exhaust mounting missing |7.1.1b| | 21 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 21 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 20 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 20 |
| Nearside Side repeater not working |1.4.A.2c| | 20 |
| Offside Side repeater not working |1.4.A.2c| | 20 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 20 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 19 |
| Centre Exhaust mounting missing |7.1.1b| | 18 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 18 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 18 |
| Rear brake application uneven | 17 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 17 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 17 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Offside Front Direction indicator not working |1.4.A.2c| | 17 |
| Driver`s seat insecure |6.2.A.1| | 17 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 16 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 16 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 16 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 16 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 15 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 14 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 13 |
| Windscreen washer not working | 13 |
| Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 13 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 13 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 12 |
| Direction indicators not working |1.4.A.2c| | 12 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 12 |
| Nearside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 12 |
| Hazard warning switch faulty |1.4.B.1d| | 11 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 11 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 11 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 11 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 11 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 10 |
| Offside front brake binding |3.7.B.1| | 10 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 10 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 10 |
| Brake load sensing valve seized |3.6.E.3| | 10 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 10 |
| Front brake application uneven | 10 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 9 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 9 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 9 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 9 |
| Nearside Front Direction indicators not working |1.4.A.2c| | 9 |
| Nearside Front Body has a sharp edge caused by corrosion |6.1.C.1| | 9 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 9 |
| Emissions not tested |7.0| | 9 |
| Windscreen has damage | 9 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 8 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 8 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 8 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 8 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 8 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 8 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 8 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 8 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 8 |
| Rear fog lamp tell tale not working |1.3.1b| | 8 |
| Indicator tell tale inoperative |1.4.A.2a| | 8 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Front Body has a sharp edge caused by corrosion |6.1.C.1| | 8 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 8 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 8 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 8 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 8 |
| Rear Exhaust mounting missing |7.1.1b| | 8 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 8 |
| Windscreen wiper blade insecure | 8 |
| Offside Front Side repeater not working |1.4.A.2c| | 8 |
| Braking system leaking |3.6.A.1| | 7 |
| Service brake: efficiency below requirements |3.7.C.1a| | 7 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 7 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 7 |
| Front position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 7 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 7 |
| Offside Front brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Front passenger seat insecure |6.2.3| | 7 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 7 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 7 |
| Fuel tank leaking |7.2.3| | 7 |
| Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 7 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Mechanical brake component has restricted free movement | 6 |
| Offside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 6 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 6 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 6 |
| Offside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Nearside front brake binding |3.7.B.1| | 6 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Body has a sharp edge caused by corrosion |6.1.C.1| | 6 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 6 |
| Offside Front Parking brake mechanism/associated mounting prescribed area is excessively corroded |3.1.9| | 6 |
| Offside Front Direction indicators not working |1.4.A.2c| | 6 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Offside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 6 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 6 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 6 |
| Position lamp switch insecure |1.1.A.1| | 6 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 6 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 6 |
| Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1| | 6 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 6 |
| Front Exhaust system not adequately supported |7.1.1| | 6 |
| Nearside Front Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Offside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Exhaust system insecure (6.1.2 (a)) | 5 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 5 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 5 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a)) | 5 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |
| Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Nearside Front Side repeater not working |1.4.A.2c| | 5 |
| Front brake disc excessively pitted |3.5.1h| | 5 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 5 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Offside Headlamp insecure (4.1.1 (c)) | 5 |
| Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Hazard warning lamps inoperative |1.4.B.1b| | 5 |
| Offside Headlamp insecure |4.1.1 |c|| | 5 |
| Rear Mechanical brake component has restricted free movement | 5 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |
| Fuel cap/sealing device missing |7.2.4a| | 5 |
| Front Body has a sharp edge caused by corrosion |6.1.C.1| | 5 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Main beam `tell-tale` not working |1.7.4c| | 5 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Offside Rear Stop lamp not working |1.2.1b| | 5 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 5 |
| Offside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 5 |
| Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 5 |
| Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 5 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 5 |
| Nearside Front front brake binding |3.7.B.1| | 5 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Parking brake lever ratchet mechanism is excessively worn |3.1.5| | 5 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 5 |
| Fuel cap/sealing device does not fasten securely by positive means |7.2.4b| | 5 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 5 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Steering column top mounting bracket insecure |2.1.2d| | 5 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Nearside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside Rear Direction indicators not working |1.4.A.2c| | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 4 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 4 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Front All position lamps not working |1.1.A.3b| | 4 |
| Stop lamp not working |1.2.1b| | 4 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Nearside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3| | 4 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 4 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 4 |
| rear parking |secondary| brakes imbalanced | 4 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 4 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 4 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1| | 4 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 4 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Front Headlamp insecure |1.7.3| | 4 |
| Rear Brake load sensing valve seized |3.6.E.3| | 4 |
| Nearside Front constant velocity joint is insecure |2.5.C.1b| | 4 |
| Offside Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| Nearside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 4 |
| Offside Obligatory mirror insecure |8.1.1| | 4 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 4 |
| Front brake excessively fluctuating | 4 |
| Nearside Front Brake pipe inadequately clipped |3.6.B.1| | 4 |
| Brake fluid warning lamp illuminated |3.6.G.2| | 4 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 4 |
| Nearside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 4 |
| Nearside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Rear Exhaust has a part missing |7.1.1a| | 4 |
| Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 4 |
| Offside Front Braking system leaking |3.6.A.1| | 4 |
| Exhaust system insecure |6.1.2 |a|| | 4 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |