| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 1313 |
| Windscreen wiper does not clear the windscreen effectively | 1260 |
| Brake pipe excessively corroded | 1138 |
| Registration plate lamp issues | 1006 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 378 |
| Offside Stop lamp not working |1.2.1b| | 314 |
| Brakes imbalanced across an axle | 294 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 291 |
| Centre Stop lamp not working |1.2.1b| | 243 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 221 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 169 |
| Front brake disc in such a condition that it is seriously weakened | 168 |
| Nearside Stop lamp not working |1.2.1b| | 156 |
| Registration plate issues | 155 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 135 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 122 |
| Offside Rear Stop lamp not working |1.2.1b| | 119 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 111 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 99 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 86 |
| Parking brake: efficiency below requirements |3.7.B.7| | 80 |
| Battery insecure |1.9.1| | 80 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 79 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 79 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 78 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 77 |
| Parking brake lever has no reserve travel |3.1.6b| | 76 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 75 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 69 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 64 |
| Rear brake binding | 62 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 62 |
| Windscreen washer not working | 61 |
| Nearside Rear Stop lamp not working |1.2.1b| | 59 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 58 |
| Anti-lock braking system warning lamp indicates an ABS fault | 58 |
| Rear Exhaust system not adequately supported |7.1.1| | 57 |
| Front brake excessively fluctuating | 57 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 56 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 54 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 52 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 51 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 48 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 46 |
| Rear parking brake recording little or no effort | 46 |
| Rear brake application uneven | 45 |
| Offside Front Position lamp not working |4.2.1 |a|| | 45 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 44 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 43 |
| Centre Rear Stop lamp not working |1.2.1b| | 43 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 43 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 42 |
| Service brake: efficiency below requirements |3.7.B.7| | 42 |
| Stop lamp not working |1.2.1b| | 42 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 41 |
| Emissions not tested |7.0| | 41 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 41 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 39 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 39 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 39 |
| Horn not working |1.6.2a| | 38 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 38 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 36 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 36 |
| Rear fog lamp not working |1.3.2b| | 34 |
| Windscreen has damage | 33 |
| Offside Rear fog lamp not working |1.3.2b| | 33 |
| Front brake application uneven | 33 |
| Windscreen wiper blade insecure | 32 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 31 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 31 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 31 |
| Nearside Rear Shock absorbers has a serious fluid leak | 30 |
| Nearside Front Shock absorbers has a serious fluid leak | 28 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 27 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 26 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 26 |
| Offside Rear Shock absorbers has a serious fluid leak | 25 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 25 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 25 |
| Central Stop lamp not working |1.2.1b| | 24 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 24 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 24 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 24 |
| Centre Upper Stop lamp not working |1.2.1b| | 23 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 23 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 23 |
| Upper Stop lamp not working |1.2.1b| | 22 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 22 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 21 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 21 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 21 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 21 |