| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 116 |
| Headlamp aim out of alignment | 101 |
| Brake pipe excessively corroded | 97 |
| Parking brake: efficiency below requirements |3.7.B.7| | 92 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 84 |
| Registration plate lamp issues | 64 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 63 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 58 |
| Brakes imbalanced across an axle | 52 |
| Parking brake lever has no reserve travel |3.1.6b| | 48 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 44 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 43 |
| Registration plate issues | 41 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 39 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 33 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Service brake: efficiency below requirements |3.7.B.7| | 31 |
| Rear parking brake recording little or no effort | 30 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 29 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 28 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 28 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 24 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 24 |
| Offside Rear fog lamp not working |1.3.2b| | 22 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 22 |
| Nearside Stop lamp not working |1.2.1b| | 22 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 20 |
| Anti-lock braking system warning lamp indicates an ABS fault | 18 |
| Brake hose excessively deteriorated | 17 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 17 |
| Rear brake binding | 16 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Offside Stop lamp not working |1.2.1b| | 16 |
| Nearside front brake binding |3.7.B.1| | 15 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 15 |
| Front brake disc in such a condition that it is seriously weakened | 13 |
| Battery insecure |1.9.1| | 12 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Nearside Rear Stop lamp not working |1.2.1b| | 11 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 11 |
| Rear brake application uneven | 11 |
| Rear brake disc in such a condition that it is seriously weakened | 11 |
| Windscreen has damage | 11 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 11 |
| Emissions not tested |7.0| | 10 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 10 |
| Nearside Headlamp not working on main beam |1.7.5a| | 9 |
| Offside front brake binding |3.7.B.1| | 9 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 8 |
| Offside Headlamp not working on main beam |1.7.5a| | 8 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 8 |
| Front brake application uneven | 8 |
| Offside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 7 |
| Nearside Front front brake binding |3.7.B.1| | 7 |
| Offside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 7 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 7 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Windscreen wiper blade insecure | 6 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 6 |
| Offside Front front brake binding |3.7.B.1| | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 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 Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 6 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Offside Front brake disc excessively pitted |3.5.1h| | 6 |
| Nearside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 6 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 6 |
| Mechanical brake component has restricted free movement | 6 |
| Centre Exhaust system not adequately supported |7.1.1| | 6 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 5 |
| Exhaust system not adequately supported |7.1.1| | 5 |
| Offside Front Seat belt retracting mechanism defective |5.2.5b| | 5 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 5 |
| brake disc excessively pitted |3.5.1h| | 5 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 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 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 5 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 4 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 4 |
| Nearside 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 Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 4 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 4 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Nearside Front brake caliper has restricted free movement |3.5.1k| | 4 |
| 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| | 4 |
| Horn not working |1.6.2a| | 4 |
| Front brake disc excessively pitted |3.5.1h| | 4 |
| Rear brake disc excessively pitted |3.5.1h| | 4 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 4 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 4 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 4 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 3 |
| Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 3 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 3 |
| Rear Stop lamp not working |1.2.1b| | 3 |
| Rear Exhaust system not adequately supported |7.1.1| | 3 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Nearside Rear brake caliper leaking |3.6.A.1| | 3 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 3 |
| Nearside Front brake disc excessively scored |3.5.1h| | 3 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 3 |
| Offside Rear brake caliper leaking |3.6.A.1| | 3 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b)) | 3 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Rear Lower Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| 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| | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| front brakes release unevenly |3.7.B.4| | 3 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 3 |
| Nearside Outer Front Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| 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| | 3 |
| Offside Rear Braking system leaking |3.6.A.1| | 3 |
| Nearside rear brake juddering severely |3.7.A.5b| | 3 |
| Emissions not tested |7.3.A.1| | 3 |