| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1251 |
| Headlamp aim out of alignment | 716 |
| Brake pipe excessively corroded | 356 |
| Front brake disc in such a condition that it is seriously weakened | 190 |
| Registration plate lamp issues | 174 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 161 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 156 |
| Brakes imbalanced across an axle | 114 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 88 |
| Anti-lock braking system warning lamp indicates an ABS fault | 83 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 81 |
| Centre Stop lamp not working |1.2.1b| | 80 |
| Registration plate issues | 78 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 76 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 69 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 60 |
| Offside Stop lamp not working |1.2.1b| | 60 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 58 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 57 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 56 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 52 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 52 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 47 |
| Nearside Stop lamp not working |1.2.1b| | 45 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 44 |
| Offside Front brake disc excessively pitted |3.5.1h| | 44 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 42 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 40 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 40 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 38 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 36 |
| Front brake disc excessively pitted |3.5.1h| | 36 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 34 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 32 |
| Offside front brake binding |3.7.B.1| | 30 |
| Parking brake: efficiency below requirements |3.7.B.7| | 30 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 29 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 29 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 27 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 27 |
| Offside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 26 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 25 |
| Offside Front front brake binding |3.7.B.1| | 25 |
| Windscreen wiper blade insecure | 25 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 25 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 24 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 23 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 23 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 23 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 23 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 23 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 22 |
| Nearside Rear Stop lamp not working |1.2.1b| | 22 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 21 |
| Central Stop lamp not working |1.2.1b| | 21 |
| Front brake excessively fluctuating | 21 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 21 |
| Rear parking brake recording little or no effort | 21 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Stop lamp not working |1.2.1b| | 20 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 20 |
| Emissions not tested (8.2.1.2 (d)) | 20 |
| Offside Rear Stop lamp not working |1.2.1b| | 19 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 19 |
| Windscreen washer not working | 19 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 19 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 19 |
| Nearside front brake binding |3.7.B.1| | 18 |
| Front brake application uneven | 18 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 18 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 17 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 17 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 17 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 17 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Offside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 16 |
| Central Stop lamp|s| not working |4.3.1 |a| |ii|| | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 16 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 15 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 15 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 15 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 15 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 14 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 14 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 14 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 14 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |