| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 171 |
| Headlamp aim out of alignment | 97 |
| Registration plate lamp issues | 68 |
| Brake pipe excessively corroded | 48 |
| Brakes imbalanced across an axle | 23 |
| Offside Stop lamp not working |1.2.1b| | 19 |
| Anti-lock braking system warning lamp indicates an ABS fault | 15 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 15 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Rear brake binding | 14 |
| Nearside Stop lamp not working |1.2.1b| | 14 |
| Rear parking brake recording little or no effort | 14 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 12 |
| Parking brake: efficiency below requirements |3.7.B.7| | 12 |
| Registration plate issues | 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 Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 11 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 9 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Offside Rear Stop lamp not working |1.2.1b| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Rear Seat belt retracting mechanism defective |5.2.5b| | 7 |
| Windscreen washer not working | 7 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Battery insecure |1.9.1| | 5 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 5 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 5 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 5 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 5 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 5 |
| Brake hose excessively deteriorated | 4 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 4 |
| Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Centre Stop lamp not working |1.2.1b| | 4 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 4 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Rear brake application uneven | 4 |
| Nearside Rear Stop lamp not working |1.2.1b| | 4 |
| Front brake application uneven | 4 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 3 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 3 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 3 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Front Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 3 |
| Offside rear brake excessively fluctuating |3.7.B.3| | 3 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Offside rear parking |secondary| brake grabbing severely |3.7.B.6b| | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Nearside Parking brake inoperative on one side |1.4.1 |a|| | 2 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 2 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |4.1.3 |b|| | 2 |
| Emissions not tested (8.2.1.2 (d)) | 2 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Rear Seat belt not functioning as intended (7.1.2 (c)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Battery insecure and likely to cause a short circuit |4.13 |a| |ii|| | 2 |
| Nearside Front Suspension component ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Nearside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 2 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii)) | 2 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Brake performance not tested (1.2.1 (g)) | 2 |
| Nearside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 2 |
| Nearside Front Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Stop lamp|s| all not working |4.3.1 |a| |iii|| | 2 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Windscreen wiper blade insecure | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |