| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 623 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 591 |
| Headlamp aim out of alignment | 565 |
| Registration plate lamp issues | 475 |
| Windscreen wiper does not clear the windscreen effectively | 400 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 372 |
| Registration plate issues | 323 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 319 |
| Offside Rear fog lamp not working |1.3.2b| | 232 |
| Horn not working |1.6.2a| | 214 |
| Rear fog lamp tell tale not working |1.3.1b| | 176 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 154 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 149 |
| Offside Rear fog lamp missing |1.3.2a| | 138 |
| Rear fog lamp not working |1.3.2b| | 132 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 122 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 106 |
| Rear fog lamp switch missing |1.3.1a| | 103 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 92 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 80 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 78 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 72 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 70 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 66 |
| Rear fog lamp missing |1.3.2a| | 63 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 61 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 57 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 56 |
| Rear Rear fog lamp not working |1.3.2b| | 54 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 51 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 49 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 47 |
| Offside Front Direction indicator not working |1.4.A.2c| | 47 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 47 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 46 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 45 |
| Emissions not tested |7.0| | 44 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 43 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 43 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 42 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 40 |
| Rear Rear fog lamp missing |1.3.2a| | 39 |
| Brakes imbalanced across an axle | 39 |
| Offside Rear Rear fog lamp missing |1.3.2a| | 39 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 39 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 38 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 36 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 36 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 34 |
| Nearside Headlamp not working on main beam |1.7.5a| | 34 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 33 |
| Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 33 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 31 |
| Parking brake lever has no reserve travel |3.1.6b| | 31 |
| Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3| | 31 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 30 |
| Nearside Rear Track rod end ball joint has excessive play |2.2.B.1f| | 30 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 30 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 30 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 29 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 29 |
| Brake hose excessively deteriorated | 29 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 28 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 28 |
| Offside Headlamp not working on main beam |1.7.5a| | 27 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 27 |
| Service brake: efficiency below requirements |3.7.B.7| | 26 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 26 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 25 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 25 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 25 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 24 |
| Windscreen has damage | 24 |
| Rear fog lamp tell tale missing |1.3.1b| | 23 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 23 |
| Nearside Rear wheel steering ball joint has excessive play |2.2.B.1i| | 22 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 22 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 22 |
| Front position lamp|s| not working |1.1.A.3b| | 22 |
| Brake performance not tested |3.7.A.1| | 21 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 20 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 20 |
| Nearside Side repeater not working |1.4.A.2c| | 20 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 20 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 20 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 20 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 20 |
| Centre Stop lamp not working |1.2.1b| | 20 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 20 |
| Parking brake: efficiency below requirements |3.7.B.7| | 19 |
| Nearside Stop lamp not working |1.2.1b| | 19 |
| Offside Stop lamp not working |1.2.1b| | 19 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Rear wheel steering ball joint has excessive play |2.2.B.1i| | 19 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 19 |
| Front brake disc in such a condition that it is seriously weakened | 18 |
| Offside Rear Track rod end ball joint has excessive play |2.2.B.1f| | 18 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 18 |
| Brake hose has insufficient room to move | 17 |
| Offside Rear Stop lamp not working |1.2.1b| | 17 |
| Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 17 |
| Service brake: efficiency below requirements |3.7.C.1a| | 16 |
| Horn not working (7.7 (a) (ii)) | 16 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 16 |
| Battery insecure |1.9.1| | 16 |
| Rear parking brake recording little or no effort | 16 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 15 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 14 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 14 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 14 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 14 |
| Offside Rear Statutory seat belt missing |5.1.1| | 14 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 14 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 14 |
| Windscreen washer not working | 13 |
| Offside Front Direction indicators not working |1.4.A.2c| | 13 |
| Offside Steering rack gaiter split |2.2.D.2d| | 13 |
| Nearside Rear Stop lamp not working |1.2.1b| | 13 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 13 |
| Emissions not tested |7.3.A.1| | 13 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Rear Statutory seat belt missing |5.1.1| | 13 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 13 |
| Windscreen wiper blade insecure | 13 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 12 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Horn not working |7.7 |a| |ii|| | 12 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Rear brake binding | 12 |
| Driver`s seat insecure |6.2.A.1| | 12 |
| Offside Inner Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 11 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| All position lamps not working |1.1.A.3b| | 11 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 11 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 11 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 11 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 11 |
| Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 11 |