| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 549 |
| Brake pipe excessively corroded | 326 |
| Windscreen wiper does not clear the windscreen effectively | 307 |
| Registration plate issues | 213 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 145 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 129 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 125 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 94 |
| Anti-lock braking system warning lamp indicates an ABS fault | 85 |
| Parking brake: efficiency below requirements |3.7.B.7| | 82 |
| Nearside Stop lamp not working |1.2.1b| | 67 |
| Offside Stop lamp not working |1.2.1b| | 67 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 65 |
| Service brake: efficiency below requirements |3.7.B.7| | 62 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 60 |
| Brake hose excessively deteriorated | 58 |
| Registration plate lamp issues | 56 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 55 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 50 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 46 |
| Parking brake lever has no reserve travel |3.1.6b| | 45 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 40 |
| Rear parking brake recording little or no effort | 40 |
| Offside Side repeater not working |1.4.A.2c| | 39 |
| Nearside Side repeater not working |1.4.A.2c| | 38 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 38 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 38 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Front Steering damper leaking oil |2.2.C.1f| | 36 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 32 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 31 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 31 |
| Brakes imbalanced across an axle | 30 |
| Windscreen has damage | 29 |
| Nearside Rear Stop lamp not working |1.2.1b| | 29 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 28 |
| Horn not working |1.6.2a| | 25 |
| Front brake disc in such a condition that it is seriously weakened | 25 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 24 |
| Centre Exhaust system not adequately supported |7.1.1| | 24 |
| Bonnet cannot be secured in the closed position |8.4.1| | 23 |
| Offside Side repeater incorrect colour (4.4.3 (a)) | 23 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 23 |
| Windscreen washer not working | 22 |
| Offside Rear fog lamp not working |1.3.2b| | 22 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Exhaust system not adequately supported |7.1.1| | 21 |
| Front Exhaust system not adequately supported |7.1.1| | 21 |
| Offside Rear Stop lamp not working |1.2.1b| | 19 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 18 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 17 |
| Nearside Side repeater incorrect colour (4.4.3 (a)) | 17 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 16 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 16 |
| Rear brake disc in such a condition that it is seriously weakened | 16 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 16 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 16 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Steering damper leaking oil |2.2.C.1f| | 15 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 15 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 14 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 14 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 14 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 13 |
| Offside Front Direction indicator not working |1.4.A.2c| | 13 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 13 |
| Rear brake application uneven | 13 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 13 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 13 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 13 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Nearside Front Side repeater not working |1.4.A.2c| | 13 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 12 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 12 |
| Battery insecure |1.9.1| | 12 |
| Offside Front Side repeater not working |1.4.A.2c| | 12 |
| Nearside Rear Wheel bolt|s| missing |4.2.A.1e| | 12 |
| Centre Stop lamp not working |1.2.1b| | 12 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 12 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 12 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Power steering component|s| leaking |2.3.3b| | 12 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 12 |
| Nearside Headlamp not working on main beam |1.7.5a| | 11 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 11 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 11 |
| Bonnet cannot be secured in the closed position (3.1 (b) (i)) | 11 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 11 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 10 |
| Horn not working (7.7 (a)) | 10 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 10 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Offside Front Anti-roll bar attachment bracket/mounting fractured |2.4.G.1| | 10 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Offside Headlamp not working on main beam |1.7.5a| | 10 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 10 |