| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 683 |
| Windscreen wiper does not clear the windscreen effectively | 394 |
| Brake pipe excessively corroded | 293 |
| Registration plate issues | 262 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 144 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 133 |
| Brake hose excessively deteriorated | 126 |
| Anti-lock braking system warning lamp indicates an ABS fault | 109 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 96 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 95 |
| Nearside Stop lamp not working |1.2.1b| | 84 |
| Centre Stop lamp not working |1.2.1b| | 82 |
| Offside Stop lamp not working |1.2.1b| | 81 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 75 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 68 |
| Parking brake: efficiency below requirements |3.7.B.7| | 66 |
| Brakes imbalanced across an axle | 62 |
| Registration plate lamp issues | 58 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 52 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 51 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 50 |
| Parking brake lever has no reserve travel |3.1.6b| | 48 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 47 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 45 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 43 |
| Service brake: efficiency below requirements |3.7.B.7| | 41 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 41 |
| Horn not working |1.6.2a| | 40 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 39 |
| Front Steering damper leaking oil |2.2.C.1f| | 37 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 37 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 35 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 34 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 33 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 32 |
| Nearside Rear Stop lamp not working |1.2.1b| | 31 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 30 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 28 |
| Offside Rear Stop lamp not working |1.2.1b| | 28 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Bonnet cannot be secured in the closed position |8.4.1| | 26 |
| Rear parking brake recording little or no effort | 26 |
| Centre Rear Stop lamp not working |1.2.1b| | 24 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 23 |
| Rear brake disc in such a condition that it is seriously weakened | 23 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Nearside Side repeater not working |1.4.A.2c| | 22 |
| Front brake disc in such a condition that it is seriously weakened | 22 |
| Windscreen has damage | 22 |
| Offside Side repeater not working |1.4.A.2c| | 21 |
| Windscreen washer not working | 20 |
| Offside Rear fog lamp not working |1.3.2b| | 20 |
| Steering damper leaking oil |2.2.C.1f| | 19 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 19 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 18 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 18 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 17 |
| Front Exhaust system not adequately supported |7.1.1| | 17 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 16 |
| Exhaust system not adequately supported |7.1.1| | 16 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 16 |
| Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 15 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Offside Obligatory mirror seriously deteriorated, affecting the rear view |8.1.2a| | 15 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 15 |
| Nearside Side repeater incorrect colour (4.4.3 (a)) | 15 |
| Offside Side repeater incorrect colour (4.4.3 (a)) | 15 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 15 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 15 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 15 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Rear brake application uneven | 14 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 14 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 14 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 13 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 13 |
| Stop lamp not working |1.2.1b| | 13 |
| Front Direction indicators incorrect colour |1.4.A.2f| | 13 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 13 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 13 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 12 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Nearside Front coil spring fractured |2.4.C.1a| | 12 |
| Nearside Front coil spring broken |2.4.C.1a| | 12 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 12 |
| Offside Front Direction indicator not working |1.4.A.2c| | 11 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 11 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 11 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 11 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 11 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 11 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 11 |
| Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 11 |
| Offside Headlamp not working on main beam |1.7.5a| | 11 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 11 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 11 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 11 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 11 |