| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 346 |
| Windscreen wiper does not clear the windscreen effectively | 134 |
| Registration plate lamp issues | 128 |
| Brake pipe excessively corroded | 110 |
| Registration plate issues | 37 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 35 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 28 |
| Parking brake: efficiency below requirements (3.7.B.7) | 26 |
| Supplementary Restraint System warning lamp indicates a fault (5.4.2) | 21 |
| Rear parking brake recording little or no effort | 21 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits (7.3.D.3) | 18 |
| Nearside Front position lamp(s) not working (1.1.A.3b) | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 17 |
| Anti-lock braking system warning lamp indicates an ABS fault | 16 |
| Rear brake binding | 16 |
| Offside Front position lamp(s) not working (1.1.A.3b) | 16 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 15 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 14 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 14 |
| Rear Exhaust has a major leak of exhaust gases (7.1.2) | 13 |
| Brakes imbalanced across an axle | 13 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 12 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 11 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 11 |
| Parking brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Stop lamp not working |1.2.1b| | 9 |
| Offside Stop lamp not working (1.2.1b) | 9 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Windscreen washer not working | 8 |
| Nearside Stop lamp not working (1.2.1b) | 8 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 8 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 8 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 8 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 7 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Front Front position lamp(s) not working (1.1.A.3b) | 6 |
| Offside Rear Stop lamp not working (1.2.1b) | 6 |
| Nearside Headlamp aim beam image obviously incorrect (1.8.A.1b) | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 6 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Brake pedal anti-slip provision missing (3.3.A.1b) | 6 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 6 |
| Windscreen wiper blade insecure | 6 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 5 |
| Offside Headlamp aim beam image obviously incorrect (1.8.A.1b) | 5 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Rear Exhaust system not adequately supported (7.1.1) | 5 |
| Emissions not tested (8.2.1.2 (d)) | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Rear Exhaust system not adequately supported |7.1.1| | 5 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 5 |
| Rear brake disc excessively pitted (3.5.1h) | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Offside Headlamp not working on dipped beam (1.7.5a) | 4 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 4 |
| Brake fluid contaminated (1.8 (a)) | 4 |
| Offside Front Front position lamp(s) not working (1.1.A.3b) | 4 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 4 |
| Nearside Stop lamp not working |1.2.1b| | 4 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 4 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Windscreen has damage | 4 |
| Rear brake application uneven | 4 |
| Emissions not tested (7.0) | 4 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Fuel cap/sealing device sealing washer deteriorated (7.2.4c) | 4 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 3 |
| Offside Front Front wheel bearing has excessive play (2.5.A.3c) | 3 |
| Offside Rear brake disc excessively pitted (3.5.1h) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 3 |
| Nearside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Rear Exhaust has part of the system excessively deteriorated (7.1.1a) | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 3 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 3 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 3 |
| Nearside Front wheel bearing rough when rotated (2.5.A.2) | 3 |
| Offside Front wheel bearing rough when rotated (2.5.A.2) | 3 |
| Brake pedal anti-slip provision missing |1.1.2 |c|| | 3 |
| Nearside Rear Stop lamp not working (1.2.1b) | 3 |
| Nearside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |
| Offside Headlamp lens seriously defective (4.1.1 (b) (ii)) | 3 |
| Emissions not tested (7.3.A.1) | 3 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 3 |
| Nearside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Offside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 3 |
| Nearside Headlamp levelling device inoperative (4.1.5 (a)) | 3 |