| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 419 |
| Windscreen wiper does not clear the windscreen effectively | 391 |
| Brake hose excessively deteriorated | 303 |
| Headlamp aim out of alignment | 291 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 218 |
| Offside Stop lamp not working |1.2.1b| | 199 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 197 |
| Nearside Stop lamp not working |1.2.1b| | 178 |
| Brakes imbalanced across an axle | 135 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 125 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 119 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 112 |
| Brake pipe excessively corroded | 108 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 95 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 93 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 92 |
| Service brake: efficiency below requirements |3.7.B.7| | 91 |
| Offside Rear Stop lamp not working |1.2.1b| | 87 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 87 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 87 |
| Brake load sensing valve linkage seized |3.6.E.3| | 79 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 79 |
| Rear Exhaust system not adequately supported |7.1.1| | 73 |
| Nearside Rear Stop lamp not working |1.2.1b| | 72 |
| Registration plate issues | 67 |
| Front brake disc in such a condition that it is seriously weakened | 63 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 56 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 51 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 50 |
| Parking brake: efficiency below requirements |3.7.B.7| | 50 |
| Rear brake binding | 49 |
| Emissions not tested |7.0| | 47 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 45 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 45 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 43 |
| Brake load sensing valve linkage defective and function impaired |3.6.E.3| | 43 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 42 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 42 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 41 |
| Rear brake application uneven | 38 |
| Offside Front coil spring fractured |2.4.C.1a| | 35 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Rear fog lamp not working |1.3.2b| | 33 |
| Exhaust system not adequately supported |7.1.1| | 33 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 32 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 31 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 28 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 27 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 26 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 25 |
| Brake load sensing valve seized |3.6.E.3| | 25 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 25 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 24 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Rear parking brake recording little or no effort | 24 |
| Offside Front brake disc excessively pitted |3.5.1h| | 23 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 23 |
| Stop lamp not working |1.2.1b| | 22 |
| Direction indicators incorrect colour |1.4.A.2f| | 22 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 21 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 21 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 20 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 20 |
| Front brake application uneven | 20 |
| Rear Stop lamp not working |1.2.1b| | 19 |
| Windscreen has damage | 19 |
| Centre Stop lamp not working |1.2.1b| | 19 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 18 |
| Offside front brake binding |3.7.B.1| | 18 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 18 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 17 |
| Offside Front coil spring incomplete |2.4.C.1a| | 17 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 17 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 17 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 17 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Horn not working |1.6.2a| | 16 |
| Offside Rear Braking system leaking |3.6.A.1| | 16 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 16 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 16 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 16 |
| Nearside Front coil spring fractured |2.4.C.1a| | 15 |
| Offside Rear Brake hose leaking |3.6.A.1| | 14 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 14 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 14 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 14 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 14 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 14 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 13 |
| Offside Steering rack gaiter split |2.2.D.2d| | 13 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 13 |
| Centre Exhaust system not adequately supported |7.1.1| | 13 |
| Battery insecure |1.9.1| | 13 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 13 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 13 |
| Rear Brake load sensing valve linkage defective and function impaired |3.6.E.3| | 12 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 12 |
| Nearside Rear Brake hose leaking |3.6.A.1| | 12 |
| Nearside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 12 |
| Offside Rear Brake load sensing valve linkage seized |3.6.E.3| | 12 |
| Indicator switch faulty |1.4.A.1| | 12 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 12 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 12 |
| Offside Front coil spring broken |2.4.C.1a| | 12 |
| Rear fog lamp not working |1.3.2b| | 12 |
| Rear Mechanical brake component has restricted free movement | 12 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 12 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 11 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 11 |
| Offside Front Anti-roll bar ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 11 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 11 |
| Brake hose damaged | 11 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Rear Direction indicator incorrect colour |1.4.A.2f| | 11 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 11 |
| Nearside Rear Braking system leaking |3.6.A.1| | 10 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 10 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 10 |
| Rear Brake load sensing valve seized |3.6.E.3| | 10 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 10 |
| Nearside front brake binding |3.7.B.1| | 10 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 10 |
| Windscreen wiper blade insecure | 9 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 9 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 9 |
| Front brake disc excessively pitted |3.5.1h| | 9 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 9 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Offside Side repeater not working |1.4.A.2c| | 9 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 9 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 9 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 9 |
| Nearside Front coil spring broken |2.4.C.1a| | 9 |
| Front position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 8 |
| Offside Front front brake binding |3.7.B.1| | 8 |