| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 291 |
| Parking brake: efficiency below requirements |3.7.B.7| | 290 |
| Headlamp aim out of alignment | 187 |
| Registration plate lamp issues | 162 |
| Brake pipe excessively corroded | 137 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 79 |
| Brakes imbalanced across an axle | 63 |
| Nearside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 62 |
| Offside Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 60 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 53 |
| Rear parking brake recording little or no effort | 52 |
| Parking brake lever has no reserve travel |3.1.6b| | 51 |
| Offside Stop lamp not working |1.2.1b| | 49 |
| Nearside Stop lamp not working |1.2.1b| | 47 |
| Front brake disc in such a condition that it is seriously weakened | 47 |
| Rear brake disc in such a condition that it is seriously weakened | 47 |
| Registration plate issues | 37 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 35 |
| Centre Stop lamp not working |1.2.1b| | 34 |
| Offside Rear Stop lamp not working |1.2.1b| | 30 |
| Brake hose excessively deteriorated | 29 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 29 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 29 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 29 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 28 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 28 |
| Rear brake binding | 28 |
| Offside Front coil spring fractured |2.4.C.1a| | 26 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 26 |
| Nearside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 25 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 22 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 21 |
| Offside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 21 |
| Emissions not tested |7.0| | 20 |
| Offside Front coil spring broken |2.4.C.1a| | 20 |
| Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 20 |
| Offside Front Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 19 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 19 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 18 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 17 |
| Service brake: efficiency below requirements |3.7.B.7| | 17 |
| Windscreen washer not working | 17 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 16 |
| Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 16 |
| Nearside Rear Stop lamp not working |1.2.1b| | 14 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Offside Front coil spring incomplete |2.4.C.1a| | 13 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 13 |
| Nearside Front coil spring broken |2.4.C.1a| | 13 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 12 |
| Rear Exhaust system not adequately supported |7.1.1| | 12 |
| Stop lamp not working |1.2.1b| | 12 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 12 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Offside front brake binding |3.7.B.1| | 11 |
| Centre Rear Stop lamp not working |1.2.1b| | 10 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 10 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 10 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 10 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 10 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 10 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 10 |
| Offside Front Front constant velocity joint is insecure |2.5.C.1b| | 10 |
| Nearside Outer Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 10 |
| Offside Rear fog lamp not working |1.3.2b| | 10 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 9 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 9 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 9 |
| Nearside front brake binding |3.7.B.1| | 9 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 9 |
| Battery insecure |1.9.1| | 9 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 9 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 9 |
| Offside Outer Front constant velocity joint is insecure |2.5.C.1b| | 9 |
| Rear Headlamp levelling device obviously defective |1.7.2| | 9 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 8 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 8 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 8 |
| Exhaust system not adequately supported |7.1.1| | 8 |
| Nearside Front constant velocity joint is insecure |2.5.C.1b| | 8 |
| Front brake application uneven | 8 |
| Front brake excessively fluctuating | 8 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 8 |
| Offside Front brake disc excessively pitted |3.5.1h| | 8 |
| Nearside Front coil spring fractured |2.4.C.1a| | 8 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Rear brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 7 |
| Front brake disc excessively pitted |3.5.1h| | 7 |
| Nearside Outer Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 7 |
| Mechanical brake component has restricted free movement | 7 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 7 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 7 |
| Offside Rear coil spring broken |2.4.C.1a| | 7 |
| Centre Rear Upper Stop lamp not working |1.2.1b| | 7 |
| Power steering fluid level below minimum |2.3.1| | 7 |
| Anti-lock braking system warning lamp indicates an ABS fault | 7 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 7 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Centre Upper Stop lamp not working |1.2.1b| | 6 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 6 |
| Offside Front Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 6 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 6 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 6 |
| Parking brake: efficiency below requirements |3.7.D.4| | 6 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 6 |
| Nearside Headlamp cleaning device inoperative |1.7.2| | 6 |
| Headlamp cleaning device inoperative both |1.7.2| | 6 |
| Offside Front front brake binding |3.7.B.1| | 6 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 6 |
| Front constant velocity joint gaiter insecurely mounted to its housing |2.5.C.1a| | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 5 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Front Headlamp levelling device inoperative (4.1.5 (a)) | 5 |
| Offside Front brake disc excessively scored |3.5.1h| | 5 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 5 |
| Offside Front coil spring cracked |2.4.C.1a| | 5 |
| Offside Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Offside Outer Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 5 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 5 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 5 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 5 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Rear Headlamp levelling device inoperative (4.1.5 (a)) | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 5 |