| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 386 |
| Windscreen wiper does not clear the windscreen effectively | 316 |
| Brake pipe excessively corroded | 255 |
| Anti-lock braking system warning lamp indicates an ABS fault | 186 |
| Registration plate lamp issues | 173 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 84 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 76 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 75 |
| Registration plate issues | 64 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 64 |
| Offside Stop lamp not working |1.2.1b| | 63 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 57 |
| Nearside Stop lamp not working |1.2.1b| | 52 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 51 |
| Centre Stop lamp not working |1.2.1b| | 51 |
| Brake hose excessively deteriorated | 51 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 45 |
| Nearside Front coil spring fractured |2.4.C.1a| | 41 |
| Offside Front coil spring fractured |2.4.C.1a| | 34 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 34 |
| Horn not working |1.6.2a| | 31 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 31 |
| Offside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 29 |
| Nearside Rear Stop lamp not working |1.2.1b| | 28 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 26 |
| Front brake disc in such a condition that it is seriously weakened | 26 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 25 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 23 |
| Power steering component|s| leaking |2.3.3b| | 23 |
| Windscreen has damage | 22 |
| Offside Front coil spring broken |2.4.C.1a| | 22 |
| Offside Rear fog lamp not working |1.3.2b| | 22 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 21 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Rear Stop lamp not working |1.2.1b| | 19 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 19 |
| Parking brake lever has no reserve travel |3.1.6b| | 19 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 19 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 18 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 18 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 18 |
| Parking brake: efficiency below requirements |3.7.B.7| | 18 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 17 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 17 |
| Brakes imbalanced across an axle | 17 |
| Steering box has a significant oil leak |2.2.D.2e| | 17 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 17 |
| Nearside Front Shock absorber has an excessively worn bush |2.7.4| | 17 |
| Stop lamp not working |1.2.1b| | 16 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 15 |
| Nearside Headlamp insecure |1.7.3| | 15 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 15 |
| Nearside Drag link end ball joint has excessive play |2.2.B.1f| | 15 |
| Offside Rear Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 14 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 14 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 14 |
| Offside Headlamp insecure |1.7.3| | 13 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 13 |
| Service brake: efficiency below requirements |3.7.B.7| | 13 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 13 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 13 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Rear brake disc in such a condition that it is seriously weakened | 12 |
| Rear brake binding | 12 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 11 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 11 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 11 |
| Centre Rear Stop lamp not working |1.2.1b| | 11 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 11 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Nearside Front Drag link end ball joint has excessive play |2.2.B.1f| | 11 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 10 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 10 |
| Offside Front coil spring incomplete |2.4.C.1a| | 10 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 10 |
| Service brake: efficiency below requirements |3.7.C.1a| | 10 |
| Offside Rear brake disc contaminated by oil |3.5.1h| | 10 |
| Nearside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 9 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 9 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 9 |
| Emissions not tested |7.0| | 9 |
| Battery insecure |1.9.1| | 9 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 9 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 8 |
| Windscreen wiper blade insecure | 8 |
| Brake pedal anti-slip provision missing |1.1.2 |c|| | 8 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 8 |
| Nearside Front coil spring broken |2.4.C.1a| | 8 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 8 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 8 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 8 |
| Offside Headlamp not working on main beam |1.7.5a| | 7 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 7 |
| Nearside Front Body has a sharp edge caused by damage |6.1.C.1| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Power steering component|s| leaking from a failed seal |2.3.3b| | 7 |
| Windscreen washer not working | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Rear Vehicle structure excessively corroded within 30cm of towbar mounting |6.6.6| | 7 |
| Nearside Front Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 7 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 7 |