| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 391 |
| Registration plate lamp issues | 264 |
| Windscreen wiper does not clear the windscreen effectively | 237 |
| Brake pipe excessively corroded | 185 |
| Parking brake: efficiency below requirements |3.7.B.7| | 145 |
| Parking brake lever has no reserve travel |3.1.6b| | 114 |
| Rear parking brake recording little or no effort | 90 |
| Registration plate issues | 72 |
| Nearside Stop lamp not working |1.2.1b| | 66 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 59 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 58 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 53 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 51 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 50 |
| Brake hose excessively deteriorated | 48 |
| Offside Stop lamp not working |1.2.1b| | 48 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 43 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 37 |
| Brakes imbalanced across an axle | 37 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 36 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 35 |
| Anti-lock braking system warning lamp indicates an ABS fault | 32 |
| Offside Rear Stop lamp not working |1.2.1b| | 32 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 30 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 30 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 30 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 30 |
| Windscreen washer not working | 29 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 28 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 27 |
| Nearside Rear Stop lamp not working |1.2.1b| | 27 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 25 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Offside Front coil spring broken |2.4.C.1a| | 23 |
| Nearside Side repeater not working |1.4.A.2c| | 23 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 23 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 22 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 22 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 22 |
| Windscreen has damage | 21 |
| Offside Rear fog lamp not working |1.3.2b| | 21 |
| Front brake disc in such a condition that it is seriously weakened | 21 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 20 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 20 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 20 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 19 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 18 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 17 |
| Offside Side repeater not working |1.4.A.2c| | 17 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 15 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 15 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 15 |
| 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| | 15 |
| Nearside Side repeater missing |1.4.A.2b| | 15 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 15 |
| Offside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 14 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 14 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Rear brake disc in such a condition that it is seriously weakened | 14 |
| Rear brake binding | 13 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 13 |
| Nearside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Nearside Front coil spring broken |2.4.C.1a| | 12 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Offside Headlamp not working on main beam |1.7.5a| | 11 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 11 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 11 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 11 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 11 |
| Emissions not tested |7.0| | 11 |
| Rear fog lamp not working |1.3.2b| | 11 |
| Rear Exhaust system not adequately supported |7.1.1| | 11 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 10 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 10 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 10 |
| 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| | 10 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 10 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 9 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 9 |
| Horn not working |1.6.2a| | 9 |
| Offside Steering rack gaiter split |2.2.D.2d| | 9 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Offside Rear Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Exhaust system not adequately supported |7.1.1| | 9 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 9 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 8 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 8 |
| Nearside Headlamp not working on main beam |1.7.5a| | 8 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 8 |
| Front brake application uneven | 8 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.4.B.1| | 8 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |