| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 173 |
| Registration plate lamp issues | 151 |
| Headlamp aim out of alignment | 132 |
| Rear parking brake recording little or no effort | 107 |
| Brake pipe excessively corroded | 93 |
| Parking brake: efficiency below requirements |3.7.B.7| | 83 |
| Registration plate issues | 66 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 53 |
| Nearside Stop lamp not working |1.2.1b| | 45 |
| Parking brake lever has no reserve travel |3.1.6b| | 43 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 43 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 40 |
| Rear brake binding | 39 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 35 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 30 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 28 |
| Offside Stop lamp not working |1.2.1b| | 26 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 25 |
| Offside Rear fog lamp not working |1.3.2b| | 23 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 20 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 20 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 18 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 18 |
| Nearside Rear Stop lamp not working |1.2.1b| | 17 |
| Anti-lock braking system warning lamp indicates an ABS fault | 17 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 16 |
| Steering rack insecure |2.2.B.1a| | 15 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 14 |
| Brakes imbalanced across an axle | 12 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 12 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Windscreen has damage | 11 |
| Front brake disc in such a condition that it is seriously weakened | 11 |
| Rear Mechanical brake component has restricted free movement | 10 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 10 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Rear Stop lamp not working |1.2.1b| | 10 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 10 |
| Battery insecure |1.9.1| | 9 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 9 |
| Rear Rear fog lamp not working |1.3.2b| | 9 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 9 |
| Nearside Front Anti-roll bar linkage fractured |2.4.G.1| | 8 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 8 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 8 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Service brake: efficiency below requirements |3.7.B.7| | 8 |
| Rear fog lamp not working |1.3.2b| | 8 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 8 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Offside Rear Brake linkage has restricted free movement |3.5.1k| | 7 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 7 |
| Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 7 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 7 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 7 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Windscreen wiper blade insecure | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 6 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 6 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 6 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 6 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 6 |
| Emissions not tested |7.0| | 6 |
| Offside Rear Brake lever has restricted free movement |3.5.1k| | 6 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Offside Front Position lamp not working |4.2.1 |a|| | 5 |
| Offside Rear Brake pivot has restricted free movement |3.5.1k| | 5 |
| Brake pivot has restricted free movement |3.5.1k| | 5 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Offside Front Front wheel bearing has excessive play |2.5.A.3c| | 5 |
| Nearside Rear Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i)) | 5 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Nearside Rear Brake linkage has restricted free movement |3.5.1k| | 5 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Bonnet cannot be secured in the closed position |8.4.1| | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Nearside Rear Brake lever has restricted free movement |3.5.1k| | 5 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 5 |
| Stop lamp not working |1.2.1b| | 5 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 5 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 5 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 5 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| rear parking |secondary| brakes imbalanced | 4 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Central Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Nearside Front front brake binding |3.7.B.1| | 4 |
| Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 4 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 4 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 4 |
| Windscreen washer not working | 4 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Nearside Rear Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 4 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Nearside Rear Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Fuel tank leaking (6.1.3 (b) (i)) | 4 |
| Rear brake application uneven | 4 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 4 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 4 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 4 |
| Nearside front brake binding |3.7.B.1| | 4 |
| Emissions not tested (8.2.1.2 (d)) | 4 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Mechanical brake component has restricted free movement | 4 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 4 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 4 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 4 |
| Brake hose excessively deteriorated | 4 |