| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 277 |
| Brake pipe excessively corroded | 109 |
| Windscreen wiper does not clear the windscreen effectively | 103 |
| Registration plate lamp issues | 87 |
| Anti-lock braking system warning lamp indicates an ABS fault | 45 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 33 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 33 |
| Registration plate issues | 29 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 23 |
| Rear parking brake recording little or no effort | 20 |
| Supplementary Restraint System warning lamp indicates a fault (5.4.2) | 20 |
| Nearside Stop lamp not working |1.2.1b| | 16 |
| Parking brake: efficiency below requirements (3.7.B.7) | 16 |
| Parking brake: efficiency below requirements |3.7.B.7| | 15 |
| Rear brake binding | 15 |
| Offside Stop lamp not working (1.2.1b) | 15 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 14 |
| Offside Stop lamp not working |1.2.1b| | 13 |
| Rear brake disc in such a condition that it is seriously weakened | 13 |
| Nearside Stop lamp not working (1.2.1b) | 13 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits (7.3.D.3) | 12 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 11 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 10 |
| Rear Exhaust has a major leak of exhaust gases (7.1.2) | 10 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 9 |
| Nearside Side repeater not working |1.4.A.2c| | 9 |
| Nearside Front position lamp(s) not working (1.1.A.3b) | 9 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 8 |
| Windscreen washer not working | 8 |
| Rear Exhaust system not adequately supported |7.1.1| | 8 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Side repeater not working |1.4.A.2c| | 7 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 7 |
| Windscreen has damage | 7 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 7 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Brakes imbalanced across an axle | 6 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Nearside Headlamp aim beam image obviously incorrect (1.8.A.1b) | 6 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Fuel cap/sealing device sealing washer deteriorated |7.2.4c| | 5 |
| Offside Headlamp not working on main beam |1.7.5a| | 5 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 5 |
| Windscreen wiper blade insecure | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Offside Headlamp aim beam image obviously incorrect (1.8.A.1b) | 5 |
| Rear Exhaust system not adequately supported (7.1.1) | 5 |
| Brake pedal anti-slip provision missing (3.3.A.1b) | 5 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 5 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement (2.4.G.2) | 5 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 5 |
| Front brake application uneven | 4 |
| Fuel cap/sealing device ineffective |6.1.3 |b| |i|| | 4 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 4 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Nearside Front Track rod end ball joint has excessive play (2.2.B.1f) | 4 |
| Exhaust has a major leak of exhaust gases (7.1.2) | 4 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Drivers airbag obviously defective (5.4.1) | 4 |
| Brake hose excessively deteriorated | 4 |
| Headlamp levelling device inoperative (4.1.5 (a)) | 4 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 4 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 4 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 4 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 4 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 3 |
| Offside Rear Stop lamp not working |1.2.1b| | 3 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 3 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Fuel tank insecure |7.2.1| | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 3 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 3 |
| Rear Mechanical brake component has restricted free movement | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Offside Front Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Nearside Rear Stop lamp not working (1.2.1b) | 3 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 3 |
| Offside Front Suspension arm has excessive play in a pin/bush (2.4.G.2) | 3 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Offside Front position lamp(s) not working (1.1.A.3b) | 3 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Nearside 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 Rear position lamp(s) not working (1.1.A.3b) | 3 |
| Offside Side repeater not working (1.4.A.2c) | 3 |
| Offside Front Lower Suspension arm pin or bush excessively worn rear bush (5.3.4 (a) (i)) | 3 |
| Nearside Front Direction indicator incorrect colour (1.4.A.2f) | 3 |
| Nearside Front passenger door cannot be opened from outside the vehicle (6.2.3 (a)) | 3 |
| Offside Rear Stop lamp not working (1.2.1b) | 3 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Direction indicator incorrect colour (1.4.A.2f) | 3 |
| Nearside Front Macpherson strut has excessive movement in the upper support bearing assembly (2.5.B.1b) | 3 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Headlamp levelling device inoperative (4.1.5 (a)) | 3 |