| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 354 |
| Headlamp aim out of alignment | 297 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 248 |
| Windscreen wiper does not clear the windscreen effectively | 213 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 172 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 159 |
| Registration plate lamp issues | 142 |
| Registration plate issues | 88 |
| Service brake: efficiency below requirements |3.7.B.7| | 80 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 61 |
| Offside Stop lamp not working |1.2.1b| | 58 |
| Offside Rear fog lamp not working |1.3.2b| | 56 |
| Rear fog lamp not working |1.3.2b| | 48 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 46 |
| Nearside Stop lamp not working |1.2.1b| | 45 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 45 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 36 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 35 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 33 |
| Offside Rear Stop lamp not working |1.2.1b| | 32 |
| Parking brake: efficiency below requirements |3.7.B.7| | 28 |
| Horn not working |1.6.2a| | 26 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 25 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 25 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 25 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 24 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 23 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 23 |
| Front brake disc in such a condition that it is seriously weakened | 22 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 21 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 21 |
| Parking brake lever has no reserve travel |3.1.6b| | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 20 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 19 |
| Nearside Side repeater not working |1.4.A.2c| | 19 |
| Windscreen washer not working | 19 |
| Centre Stop lamp not working |1.2.1b| | 19 |
| Service brake: efficiency below requirements |3.7.C.1a| | 19 |
| Emissions not tested |7.0| | 19 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 18 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 18 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 18 |
| Rear parking brake recording little or no effort | 18 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 17 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 17 |
| Brakes imbalanced across an axle | 17 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 17 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 17 |
| Nearside Rear Vehicle structure excessively corroded within 30cm of towbar mounting |6.6.6| | 16 |
| Offside Rear Vehicle structure excessively corroded within 30cm of towbar mounting |6.6.6| | 16 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 16 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 16 |
| Offside Side repeater not working |1.4.A.2c| | 16 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 15 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 15 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 15 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 15 |
| Rear Vehicle structure excessively corroded within 30cm of towbar mounting |6.6.6| | 14 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Rear brake disc in such a condition that it is seriously weakened | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 13 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 13 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 12 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 12 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 12 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 11 |
| Ball joint has excessive play |2.2.B.1f| | 11 |
| Windscreen has damage | 11 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 11 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 11 |
| Rear brake binding | 11 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 10 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 10 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 10 |
| Vehicle structure excessively corroded within 30cm of towbar mounting |6.6.6| | 10 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 10 |
| Offside Front Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 10 |
| Brake performance not tested |3.7.A.1| | 10 |
| Steering box has a significant oil leak |2.2.D.2e| | 9 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 9 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 9 |
| Headlamp switch faulty |1.7.1| | 9 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 9 |
| Exhaust carbon monoxide content at idle exceeds default limits |8.2.1.2 |b|| | 9 |
| Rear fog lamp tell tale not working |1.3.1b| | 9 |
| Offside Headlamp not working on main beam |1.7.5a| | 9 |
| Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a| | 9 |
| Front Exhaust system not adequately supported |7.1.1| | 9 |
| Windscreen wiper blade insecure | 9 |
| Nearside Front Drag link end ball joint has excessive play |2.2.B.1f| | 8 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 8 |
| Offside Front Seat belt damaged sufficient to significantly weakened the webbing |5.2.2a| | 8 |
| Horn not working (7.7 (a)) | 8 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 8 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 8 |
| Exhaust engine idle speed too high |7.3.D.1| | 8 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 8 |
| Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 8 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 8 |
| Power steering component|s| leaking |2.3.3b| | 8 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 8 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Fuel cap/sealing device missing |7.2.4a| | 7 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 7 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 7 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 7 |
| Nearside Steering rack gaiter insecure |2.2.D.2d| | 7 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer`s specified limits |8.2.1.2 |a|| | 7 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 6 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 6 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 6 |
| Stop lamp not working |1.2.1b| | 6 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b)) | 6 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 6 |
| Nearside Front Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 6 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Emissions not tested |7.3.A.1| | 6 |
| Nearside Rear Direction indicators not working |1.4.A.2c| | 6 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 6 |
| Offside Headlamp insecure |1.7.3| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Anti-lock braking system warning lamp indicates an ABS fault | 6 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 6 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 6 |
| Rear fog lamp switch faulty |1.3.1a| | 6 |
| Nearside Rear Upper Shock absorbers has an excessively worn bush (5.3.2 (c)) | 6 |