| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 168 |
| Registration plate lamp issues | 142 |
| Headlamp aim out of alignment | 139 |
| Parking brake: efficiency below requirements |3.7.B.7| | 78 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 51 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 51 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 47 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 47 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 46 |
| Rear parking brake recording little or no effort | 46 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 45 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 38 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 36 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 34 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 32 |
| Anti-lock braking system warning lamp indicates an ABS fault | 30 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| Brake pipe excessively corroded | 27 |
| Registration plate issues | 25 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 25 |
| Nearside Stop lamp not working |1.2.1b| | 25 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 24 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 24 |
| Windscreen has damage | 22 |
| Centre Stop lamp not working |1.2.1b| | 21 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 20 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 19 |
| Offside Stop lamp not working |1.2.1b| | 19 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 17 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 17 |
| Brakes imbalanced across an axle | 17 |
| Rear brake binding | 17 |
| Offside Rear coil spring broken |2.4.C.1a| | 17 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 16 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 16 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Hazard warning switch faulty |1.4.B.1d| | 14 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 14 |
| Front brake disc in such a condition that it is seriously weakened | 14 |
| Rear brake disc in such a condition that it is seriously weakened | 14 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 13 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 13 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 13 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Horn not working |1.6.2a| | 12 |
| Windscreen washer not working | 12 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 11 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 10 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 10 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 9 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 9 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 9 |
| Nearside Rear coil spring broken |2.4.C.1a| | 9 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Centre Rear Stop lamp not working |1.2.1b| | 8 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 8 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Horn not working (7.7 (a)) | 7 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 7 |
| Offside Front Position lamp not working |4.2.1 |a|| | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 7 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 7 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 7 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 7 |
| Offside Ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 6 |
| Nearside Front Ball joint has excessive play |2.2.B.1f| | 6 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 6 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Rear fog lamp not working |1.3.2b| | 6 |
| Front position lamp|s| not working |1.1.A.3b| | 6 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Parking brake lever has no reserve travel |3.1.6b| | 6 |
| Offside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 6 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Offside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 5 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 5 |
| Windscreen wiper blade insecure | 5 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 5 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 5 |
| Hazard warning lamps inoperative |1.4.B.1b| | 5 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 5 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 5 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 5 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 4 |
| Offside Front front brake binding |3.7.B.1| | 4 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 4 |
| Central Stop lamp not working |1.2.1b| | 4 |
| Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 4 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 4 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 4 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 4 |
| Brake hose has insufficient room to move | 4 |
| Offside Front Shock absorbers has a serious fluid leak | 4 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 4 |
| Nearside Front Shock absorbers has a serious fluid leak | 4 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 4 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 4 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 4 |
| Offside front brake binding |3.7.B.1| | 4 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 4 |
| Offside Front Direction indicator not working |1.4.A.2c| | 4 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Emissions not tested |7.0| | 3 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 3 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 3 |
| Offside Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Nearside Steering arm has relative movement at its fixings |2.2.B.1h| | 3 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen |3.5 |a|| | 3 |
| Nearside Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Hazard warning switch missing |1.4.B.1d| | 3 |
| Nearside Front Direction indicator insecure |1.4.A.2b| | 3 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 3 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |c|| | 3 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Stop lamp|s| not working |4.3.1 |a| |ii|| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 3 |
| Nearside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 3 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Offside Rear Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 3 |
| Nearside Headlamp insecure |1.7.3| | 3 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 3 |
| Offside Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 3 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Offside Rear reflector missing |1.5.1a| | 3 |
| Rear fog lamp emits a light other than red |1.3.2e| | 3 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 3 |