| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 944 |
| Brake pipe excessively corroded | 630 |
| Headlamp aim out of alignment | 406 |
| Registration plate lamp issues | 237 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 145 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 137 |
| Anti-lock braking system warning lamp indicates an ABS fault | 115 |
| Brakes imbalanced across an axle | 109 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 83 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 78 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 75 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 75 |
| Registration plate issues | 75 |
| Brake hose excessively deteriorated | 75 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 71 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 66 |
| Centre Stop lamp not working |1.2.1b| | 64 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 61 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 58 |
| Parking brake: efficiency below requirements |3.7.B.7| | 56 |
| Rear brake binding | 51 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 47 |
| Rear parking brake recording little or no effort | 47 |
| Rear Exhaust system not adequately supported |7.1.1| | 46 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 41 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 40 |
| Offside front brake binding |3.7.B.1| | 38 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 37 |
| Nearside Stop lamp not working |1.2.1b| | 37 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 35 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 35 |
| Horn not working |1.6.2a| | 35 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 34 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 33 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 31 |
| Offside Stop lamp not working |1.2.1b| | 30 |
| Front brake disc in such a condition that it is seriously weakened | 30 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 29 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 28 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 28 |
| Nearside front brake binding |3.7.B.1| | 28 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 28 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 28 |
| Front brake application uneven | 27 |
| Windscreen washer not working | 27 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 26 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 25 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 24 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 23 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 23 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 23 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 23 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 23 |
| Windscreen wiper blade insecure | 22 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 22 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 22 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 21 |
| Offside Front front brake binding |3.7.B.1| | 21 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 21 |
| Parking brake lever has no reserve travel |3.1.6b| | 20 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 20 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 20 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 19 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 19 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 18 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 18 |
| Rear Exhaust system insecure (6.1.2 (a)) | 17 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 17 |
| Offside Front Position lamp not working |4.2.1 |a|| | 16 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 15 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 15 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 15 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Emissions not tested (8.2.1.2 (d)) | 14 |
| Front brake excessively fluctuating | 14 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 14 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 14 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 14 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Offside Rear Stop lamp not working |1.2.1b| | 14 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Mechanical brake component has restricted free movement | 13 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 13 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 13 |
| Nearside Front front brake binding |3.7.B.1| | 13 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 13 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 12 |
| Central Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 12 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 12 |