| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 528 |
| Registration plate lamp issues | 489 |
| Windscreen wiper does not clear the windscreen effectively | 393 |
| Parking brake: efficiency below requirements |3.7.B.7| | 238 |
| Brakes imbalanced across an axle | 235 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 187 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 172 |
| Rear brake application uneven | 139 |
| Registration plate issues | 133 |
| Offside Rear fog lamp not working |1.3.2b| | 126 |
| Parking brake lever has no reserve travel |3.1.6b| | 125 |
| Rear parking brake recording little or no effort | 121 |
| Nearside Stop lamp not working |1.2.1b| | 119 |
| Brake pipe excessively corroded | 100 |
| Offside Stop lamp not working |1.2.1b| | 97 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 90 |
| Rear brake binding | 85 |
| Service brake: efficiency below requirements |3.7.B.7| | 82 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 74 |
| Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 74 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 70 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 69 |
| Windscreen has damage | 68 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 68 |
| Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 63 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 61 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 54 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 51 |
| Horn not working |1.6.2a| | 49 |
| Rear fog lamp not working |1.3.2b| | 48 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 48 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 46 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 43 |
| Nearside Rear Stop lamp not working |1.2.1b| | 43 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 42 |
| Offside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 41 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 40 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 38 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 36 |
| Battery insecure |1.9.1| | 35 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 35 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 35 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 35 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 35 |
| Offside Rear Stop lamp not working |1.2.1b| | 34 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 34 |
| Nearside Rear Leaf spring fractured |2.4.B.1a| | 33 |
| Rear Exhaust system not adequately supported |7.1.1| | 32 |
| Front brake disc in such a condition that it is seriously weakened | 30 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 30 |
| Nearside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 29 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 29 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 29 |
| Centre Statutory seat belt missing |5.1.1| | 28 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 28 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 28 |
| Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 26 |
| Fuel tank leaking |7.2.3| | 26 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 25 |
| Nearside Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 25 |
| Nearside Rear Lower Shock absorber has an excessively worn bush |2.7.4| | 25 |
| Windscreen washer not working | 25 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 24 |
| Exhaust system not adequately supported |7.1.1| | 24 |
| Offside front brake binding |3.7.B.1| | 23 |
| Nearside Rear position lamp|s| insecure |1.1.A.3a| | 23 |
| Front brake application uneven | 22 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 22 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 22 |
| Nearside Side repeater not working |1.4.A.2c| | 22 |
| Nearside Front Shock absorber has an excessively worn bush |2.7.4| | 20 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 20 |
| Nearside Front Stub axle has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 20 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 20 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 20 |
| rear brakes release unevenly |3.7.B.4| | 19 |
| Nearside Obligatory mirror insecure |8.1.1| | 19 |
| Nearside front brake binding |3.7.B.1| | 19 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 19 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 19 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 19 |
| Nearside rear brake grabbing severely |3.7.A.5b| | 18 |
| Emissions not tested |7.0| | 18 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 18 |
| Nearside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 18 |
| Offside Rear position lamp|s| insecure |1.1.A.3a| | 17 |
| Offside Front Position lamp not working |4.2.1 |a|| | 16 |
| Rear Exhaust has a part missing |7.1.1a| | 16 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 16 |
| Nearside Side repeater incomplete |1.5.A1b| | 16 |
| Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 15 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 15 |
| Offside Side repeater not working |1.4.A.2c| | 15 |
| Brake hose excessively deteriorated | 15 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 15 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 14 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Rear fog lamp tell tale not working |1.3.1b| | 14 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 14 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 14 |
| Offside rear brake grabbing severely |3.7.A.5b| | 14 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 14 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 14 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 14 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 13 |
| Nearside Rear position lamp|s| incorrect colour |1.1.A.3e| | 12 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 12 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 12 |
| Nearside Front Side repeater not working |1.4.A.2c| | 12 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 12 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 12 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 12 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 11 |
| Offside Rear Leaf spring cracked |2.4.B.1a| | 11 |
| Mechanical brake component has restricted free movement | 11 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 11 |
| Offside Front Stub axle has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 11 |
| Offside Front Lower Shock absorber has an excessively worn bush |2.7.4| | 11 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 11 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 11 |
| Nearside Rear Leaf spring cracked |2.4.B.1a| | 11 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 11 |
| Centre Seat belt locking mechanism does not secure or release |5.2.5a| | 11 |
| Offside Front Axle king pin is loose in the axle beam (5.1.2 (d) (i)) | 11 |
| Steering system excessively tight |2.2.D.1| | 10 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 10 |
| Offside Stop lamp emits other than a steady red light |1.2.1e| | 10 |
| Offside Obligatory mirror insecure |8.1.1| | 10 |
| Windscreen wiper blade insecure | 10 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 10 |
| Nearside Side repeater excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 10 |
| Offside Front Shock absorber has an excessively worn bush |2.7.4| | 10 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 10 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 10 |
| Nearside Front Axle king pin is loose in the axle beam (5.1.2 (d) (i)) | 10 |
| Nearside Front Axle king pin so loose it is likely to affect directional stability (5.1.2 (d) (ii)) | 10 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 10 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 9 |
| Offside Rear position lamp|s| incorrect colour |1.1.A.3e| | 9 |
| Offside Front front brake binding |3.7.B.1| | 9 |
| Fuel cap/sealing device missing |7.2.4a| | 9 |
| Nearside Front Side repeater incomplete |1.5.A1b| | 9 |
| Offside Front Direction indicator not working |1.4.A.2c| | 9 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 9 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 9 |
| Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 9 |
| Nearside Upper Front position lamp|s| not working |1.1.A.3b| | 9 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 9 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 9 |
| Centre Front Statutory seat belt missing |5.1.1| | 8 |
| Front Exhaust system not adequately supported |7.1.1| | 8 |
| Emissions not tested |7.4.B.1| | 8 |
| Nearside Headlamp not working on main beam |1.7.5a| | 8 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 8 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Centre Exhaust system not adequately supported |7.1.1| | 8 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 8 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 8 |
| Nearside Rear brake drum contaminated by oil |3.5.1h| | 8 |
| Nearside Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 8 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 8 |
| Nearside Body has a sharp edge caused by damage |6.1.C.1| | 8 |
| Nearside Rear position lamp|s| incomplete |1.1.4a| | 8 |
| Offside All position lamps not working |1.1.A.3b| | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 8 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 8 |
| Offside Front Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i)) | 8 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 8 |
| Offside Front Axle king pin so loose it is likely to affect directional stability (5.1.2 (d) (ii)) | 8 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 8 |