| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 299 |
| Headlamp aim out of alignment | 232 |
| Brake pipe excessively corroded | 144 |
| Registration plate lamp issues | 130 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 79 |
| Brakes imbalanced across an axle | 70 |
| Offside Stop lamp not working |1.2.1b| | 68 |
| Nearside Stop lamp not working |1.2.1b| | 64 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 61 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 60 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 48 |
| Rear brake binding | 46 |
| Anti-lock braking system warning lamp indicates an ABS fault | 44 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 42 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 41 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 40 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 37 |
| Parking brake lever has no reserve travel |3.1.6b| | 36 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 35 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 33 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 31 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 31 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 27 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 27 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 23 |
| Offside Rear Stop lamp not working |1.2.1b| | 23 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 22 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 21 |
| Parking brake: efficiency below requirements |3.7.B.7| | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 20 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 20 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 18 |
| Offside Front Position lamp not working |4.2.1 |a|| | 18 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 17 |
| Registration plate issues | 17 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 17 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 16 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 15 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Windscreen washer not working | 14 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 13 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 13 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 13 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 12 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 11 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Rear parking brake recording little or no effort | 11 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Rear brake disc in such a condition that it is seriously weakened | 11 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 11 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 11 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 10 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 10 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 10 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 9 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 9 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 8 |
| Offside Front Shock absorbers has a serious fluid leak | 8 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 8 |
| Battery insecure |1.9.1| | 8 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 7 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 7 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 7 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 7 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Rear Mechanical brake component has restricted free movement | 6 |
| Brake performance not tested (1.2.1 (g)) | 6 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Front brake disc in such a condition that it is seriously weakened | 6 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 6 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 6 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 5 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 5 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 5 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 5 |
| Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 5 |
| Nearside 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 Shock absorbers has a serious fluid leak | 5 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 5 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |