| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 871 |
| Brake pipe excessively corroded | 698 |
| Windscreen wiper does not clear the windscreen effectively | 446 |
| Registration plate lamp issues | 343 |
| Brakes imbalanced across an axle | 254 |
| Rear brake binding | 229 |
| Parking brake: efficiency below requirements |3.7.B.7| | 226 |
| Brake hose excessively deteriorated | 220 |
| Exhaust system not adequately supported |7.1.1| | 206 |
| Service brake: efficiency below requirements |3.7.B.7| | 160 |
| Rear parking brake recording little or no effort | 142 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 140 |
| Offside Rear fog lamp not working |1.3.2b| | 137 |
| Horn not working |1.6.2a| | 131 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 123 |
| Offside Headlamp insecure |1.7.3| | 121 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 118 |
| Offside Headlamp not working on main beam |1.7.5a| | 118 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 114 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 110 |
| Nearside Headlamp insecure |1.7.3| | 108 |
| Battery insecure |1.9.1| | 103 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 89 |
| Offside Side repeater not working |1.4.A.2c| | 87 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 85 |
| Nearside Headlamp not working on main beam |1.7.5a| | 79 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 76 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 75 |
| Rear brake application uneven | 75 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 74 |
| Offside Stop lamp not working |1.2.1b| | 68 |
| Registration plate issues | 66 |
| Centre Exhaust system not adequately supported |7.1.1| | 65 |
| Front brake disc in such a condition that it is seriously weakened | 65 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 62 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 61 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 59 |
| Offside Front Direction indicator not working |1.4.A.2c| | 58 |
| Fuel system component leaking |7.2.3| | 56 |
| Nearside Stop lamp not working |1.2.1b| | 54 |
| Exhaust mounting missing |7.1.1b| | 51 |
| Windscreen washer not working | 51 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 49 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 49 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 48 |
| Brake load sensing valve linkage seized |3.6.E.3| | 47 |
| Nearside Side repeater not working |1.4.A.2c| | 47 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 45 |
| Front brake application uneven | 44 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 44 |
| Rear Exhaust system not adequately supported |7.1.1| | 44 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 43 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 43 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 42 |
| Rear fog lamp tell tale not working |1.3.1b| | 42 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 42 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 42 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 41 |
| Parking brake lever has no reserve travel |3.1.6b| | 39 |
| Rear fog lamp not working |1.3.2b| | 38 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 38 |
| Rear Mechanical brake component has restricted free movement | 37 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 37 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 36 |
| Centre Exhaust mounting missing |7.1.1b| | 36 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 36 |
| Emissions not tested |7.0| | 35 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 35 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 34 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 33 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 33 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 33 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 33 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 32 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 32 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 32 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 31 |
| Brake load sensing valve seized |3.6.E.3| | 31 |
| Offside Front Side repeater not working |1.4.A.2c| | 30 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 29 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 29 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 29 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 29 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 29 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 28 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 28 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 28 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 27 |
| Offside Front brake disc excessively pitted |3.5.1h| | 27 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 26 |
| Horn not working (7.7 (a)) | 26 |
| Nearside Front Headlamp insecure |1.7.3| | 25 |
| Offside Steering rack gaiter split |2.2.D.2d| | 24 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 24 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 24 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 24 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 24 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 24 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 24 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 24 |
| Offside Rear Stop lamp not working |1.2.1b| | 23 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 23 |
| Offside Front Headlamp insecure |1.7.3| | 23 |
| Offside Rear fog lamp missing |1.3.2a| | 23 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 23 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 23 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 23 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 23 |
| Nearside Rear Stop lamp not working |1.2.1b| | 22 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 22 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 22 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 22 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 22 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 22 |
| Nearside Headlamp insecure (4.1.1 (c)) | 22 |
| Offside Headlamp insecure (4.1.1 (c)) | 22 |
| 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| | 21 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 21 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 21 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 21 |
| Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 20 |
| Brake performance not tested |3.7.A.1| | 20 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 20 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 20 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 20 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 20 |
| Indicator tell tale inoperative |1.4.A.2a| | 19 |
| Windscreen has damage | 19 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 19 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 19 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 19 |
| Horn not working (7.7 (a) (ii)) | 19 |
| All position lamps not working |1.1.A.3b| | 18 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 18 |
| Nearside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 18 |
| Nearside front brake binding |3.7.B.1| | 18 |
| Brake pedal spongy |3.3.B.1b| | 18 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 18 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 18 |
| Direction indicators not working |1.4.A.2c| | 18 |
| Exhaust system insecure (6.1.2 (a)) | 18 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 18 |
| Front brake excessively fluctuating | 17 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 17 |
| Rear Exhaust mounting missing |7.1.1b| | 17 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 17 |
| 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| | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 17 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 17 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 17 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 16 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 16 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 16 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 16 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 16 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 16 |
| 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| | 15 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 15 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 15 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 15 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 15 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 15 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 15 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 15 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 15 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 15 |
| Headlamp aim beam image kick up to the offside |1.8| | 14 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 14 |
| Front Exhaust system not adequately supported |7.1.1| | 14 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 14 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 14 |
| Nearside Front Side repeater not working |1.4.A.2c| | 14 |
| Offside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 14 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 14 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 14 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 14 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 13 |
| Horn not working |7.7 |a| |ii|| | 13 |
| 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| | 13 |
| Offside Headlamp aim not tested |1.8.A.1c| | 13 |
| Offside front brake binding |3.7.B.1| | 13 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 13 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 13 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 13 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 13 |
| Offside Front Brake pipe leaking |3.6.A.1| | 13 |
| Mechanical brake component has restricted free movement | 13 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Brake load sensing valve seized and ABS not fitted or inoperative (1.1.17 (c) (ii)) | 13 |
| rear parking |secondary| brakes imbalanced | 12 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 12 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Brake hose damaged | 12 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 12 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 12 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 12 |
| Fuel pipe leaking |7.2.3| | 12 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 12 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 12 |