| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 637 |
| Parking brake: efficiency below requirements |3.7.B.7| | 566 |
| Windscreen wiper does not clear the windscreen effectively | 472 |
| Rear parking brake recording little or no effort | 400 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 338 |
| Registration plate lamp issues | 274 |
| Brakes imbalanced across an axle | 248 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 233 |
| Rear brake binding | 210 |
| Parking brake lever has no reserve travel |3.1.6b| | 168 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 159 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 155 |
| Registration plate issues | 153 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 116 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 113 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 100 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 93 |
| Nearside front brake binding |3.7.B.1| | 87 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 84 |
| Offside front brake binding |3.7.B.1| | 82 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 80 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 64 |
| Front brake application uneven | 61 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 58 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 56 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 54 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 53 |
| Nearside Stop lamp not working |1.2.1b| | 53 |
| Anti-lock braking system warning lamp indicates an ABS fault | 50 |
| Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b)) | 47 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 45 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 44 |
| Nearside Front front brake binding |3.7.B.1| | 42 |
| Service brake: efficiency below requirements |3.7.B.7| | 40 |
| Horn not working |1.6.2a| | 38 |
| Offside Stop lamp not working |1.2.1b| | 38 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 37 |
| Offside Rear fog lamp not working |1.3.2b| | 37 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 36 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 36 |
| Mechanical brake component has restricted free movement | 36 |
| Offside Front front brake binding |3.7.B.1| | 35 |
| Emissions not tested |7.0| | 35 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 34 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 33 |
| Brake pipe excessively corroded | 32 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 32 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 31 |
| Rear brake application uneven | 30 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 29 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 29 |
| Offside Steering rack gaiter split |2.2.D.2d| | 28 |
| Offside Rear Stop lamp not working |1.2.1b| | 28 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 27 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 27 |
| Windscreen washer not working | 27 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Windscreen has damage | 26 |
| Front brake disc in such a condition that it is seriously weakened | 25 |
| Battery insecure |1.9.1| | 25 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 25 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 24 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 24 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 23 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 23 |
| Brake hose excessively deteriorated | 22 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 22 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 22 |
| Rear Mechanical brake component has restricted free movement | 22 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 22 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 22 |
| Nearside Rear Stop lamp not working |1.2.1b| | 21 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 21 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 20 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 20 |
| Rear fog lamp not working |1.3.2b| | 20 |
| Nearside Headlamp not working on main beam |1.7.5a| | 20 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 19 |
| Horn not working (7.7 (a)) | 19 |
| Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 19 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 18 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 18 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 18 |
| Rear brake disc in such a condition that it is seriously weakened | 18 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 18 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 17 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 16 |
| Offside Front Shock absorbers has a serious fluid leak | 16 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 15 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 15 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 15 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 15 |
| Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 14 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 14 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 14 |
| Rear fog lamp tell tale not working |1.3.1b| | 14 |
| Emissions not tested (8.2.1.2 (d)) | 14 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 13 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 13 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 13 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 13 |
| Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) | 13 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 13 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 13 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 12 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 12 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 12 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 12 |
| Brake hose has insufficient room to move | 12 |
| Windscreen wiper blade insecure | 12 |
| Offside Headlamp not working on main beam |1.7.5a| | 12 |
| Exhaust catalytic converter missing where one was fitted as standard (8.2.1.1 (a)) | 12 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded outer sill |2.4.A.3| | 11 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 11 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 11 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 11 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 11 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Nearside Rear Tie bar/rod corroded and seriously weakened |2.4.G.1| | 11 |
| rear parking |secondary| brakes imbalanced | 11 |