| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1319 |
| Headlamp aim out of alignment | 680 |
| Brakes imbalanced across an axle | 485 |
| Brake pipe excessively corroded | 400 |
| Registration plate lamp issues | 332 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 327 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 208 |
| Front brake disc in such a condition that it is seriously weakened | 193 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 172 |
| Offside Stop lamp not working |1.2.1b| | 143 |
| Nearside Stop lamp not working |1.2.1b| | 142 |
| Parking brake: efficiency below requirements |3.7.B.7| | 135 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 133 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 120 |
| Front brake application uneven | 118 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 112 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 111 |
| Emissions not tested |7.0| | 98 |
| Rear parking brake recording little or no effort | 85 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 78 |
| Rear Exhaust has a part missing |7.1.1a| | 77 |
| Registration plate issues | 77 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 76 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 75 |
| Centre Stop lamp not working |1.2.1b| | 72 |
| Rear brake application uneven | 71 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 71 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 67 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 67 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 66 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 63 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 62 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 61 |
| Offside Front brake disc excessively pitted |3.5.1h| | 60 |
| Offside front brake binding |3.7.B.1| | 60 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 56 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 55 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 55 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 54 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 52 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 47 |
| Windscreen wiper blade insecure | 47 |
| Rear Exhaust system not adequately supported |7.1.1| | 47 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 47 |
| Front brake disc excessively pitted |3.5.1h| | 46 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 46 |
| Brake pedal spongy |3.3.B.1b| | 46 |
| Offside Rear Stop lamp not working |1.2.1b| | 43 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 42 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 41 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 40 |
| Rear brake binding | 39 |
| Offside Front front brake binding |3.7.B.1| | 38 |
| Nearside front brake binding |3.7.B.1| | 37 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 35 |
| Nearside Rear Stop lamp not working |1.2.1b| | 35 |
| Front brake excessively fluctuating | 35 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 33 |
| Fuel tank leaking |7.2.3| | 33 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 32 |
| Exhaust system not adequately supported |7.1.1| | 32 |
| Parking brake lever has no reserve travel |3.1.6b| | 31 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 31 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 31 |
| Exhaust has a part missing |7.1.1a| | 30 |
| 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| | 29 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 29 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 29 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 28 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 27 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 27 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 26 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 26 |
| Windscreen has damage | 26 |
| Nearside Front front brake binding |3.7.B.1| | 26 |
| Emissions not tested |7.3.A.1| | 25 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 24 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 24 |
| Mechanical brake component has restricted free movement | 24 |
| Battery insecure |1.9.1| | 23 |
| 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| | 22 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 22 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 22 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 21 |
| Nearside Headlamp insecure |1.7.3| | 20 |
| Offside Headlamp insecure |1.7.3| | 20 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 20 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 20 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 20 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 19 |
| Offside Rear Suspension spring mounting prescribed area is excessively corroded chassis |2.4.A.3| | 19 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 19 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 19 |
| Central Stop lamp not working |1.2.1b| | 18 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 18 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i|| | 18 |
| Offside Rear coil spring broken |2.4.C.1a| | 17 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 17 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 17 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 17 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 17 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 17 |