| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 20 |
| Registration plate lamp issues | 19 |
| Parking brake: efficiency below requirements |3.7.B.7| | 18 |
| Headlamp aim out of alignment | 16 |
| Brake pipe excessively corroded | 13 |
| Rear parking brake recording little or no effort | 8 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 5 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 4 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Brakes imbalanced across an axle | 4 |
| Offside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 3 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Rear brake binding | 3 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Power steering malfunctioning (2.1.5 (a)) | 2 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 2 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 2 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Rear fog lamp not working |1.3.2b| | 2 |
| Nearside Front Side repeater not working |1.4.A.2c| | 2 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Rear fog lamp not working |1.3.2b| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Offside front brake binding |3.7.B.1| | 2 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |
| Offside Rear coil spring broken |2.4.C.1a| | 2 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Central Stop lamp not working |1.2.1b| | 2 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Trailer electrical socket wiring insulation damaged or deteriorated and likely to cause a short-circuit (4.10 (b) (ii)) | 1 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii)) | 1 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Nearside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Nearside Rear Upper Suspension spring mounting prescribed area excessively corroded significantly reducing structural strength Mounting plate (5.3.6 (a) (i)) | 1 |
| Offside Rear Upper Suspension spring mounting prescribed area excessively corroded significantly reducing structural strength Mounting plate (5.3.6 (a) (i)) | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Front Steering system has excessive free play detected at the steering wheel |steering rack fitted| track rod at the rack |2.2.A.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Windscreen has damage | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Obligatory mirror does not provide a view to the rear |3.3 |c|| | 1 |
| Nearside Rear Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Offside Rear Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Centre Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Brake hose twisted |3.6.B.4c| | 1 |
| Headlamp aim not tested |1.8.A.1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Offside Front Suspension arm ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Front Suspension arm ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Offside Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Brake pipe fouled by moving parts |3.6.B.2a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Headlamp insecure |1.7.3| | 1 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front drive shaft support bearing excessively worn |2.5.C.2c| | 1 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Offside Front Suspension arm ball joint excessively worn bottom ball joint (5.3.4 (a) (i)) | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c| | 1 |
| Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength Outrigger/jacking point (5.3.6 (a) (i)) | 1 |
| Stop lamp not working centre high level |1.2.1b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Front Anti-roll bar linkage ball joint excessively worn drop link (5.3.4 (a) (i)) | 1 |
| Nearside Front Subframe mounting prescribed area excessively damaged significantly reducing structural strength out rigger (5.3.6 (a) (i)) | 1 |
| Rear Upper Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Front brake application uneven | 1 |
| Nearside Front Front position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b| | 1 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Hazard warning lamps inoperative (4.4.1 (e)) | 1 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 1 |
| Nearside Front Suspension rod ball joint dust cover no longer prevents the ingress of dirt droplink (5.3.4 (b) (ii)) | 1 |
| Windscreen wiper blade insecure | 1 |
| Front Front position lamp|s| not working all |1.1.A.3b| | 1 |
| Nearside Rear brake caliper has restricted free movement |3.5.1k| | 1 |
| Centre Upper Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Offside rear brake excessively fluctuating |3.7.B.3| | 1 |
| Nearside Front All position lamps not working |1.1.A.3b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Outline marker lamp not working X2 (4.2.1 (a) (ii)) | 1 |
| Centre Rear Stop lamp not working |1.2.1b| | 1 |
| Horn sounds harsh or grating |1.6.2e| | 1 |
| Nearside Front Brake hose leaking |3.6.A.1| | 1 |
| Offside Front Upper Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Nearside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Rear Upper Stop lamp not working |1.2.1b| | 1 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Nearside Seat belt buckle not functioning as intended (7.1.2 (d)) | 1 |
| Rear Rear fog lamp not working not working from trailer socket |1.3.2b| | 1 |
| Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear wheel cylinder leaking |3.6.A.1| | 1 |
| Brake pedal spongy |3.3.B.1b| | 1 |
| Offside Front Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Central Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Sub-frame pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Sub-frame pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Offside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 1 |
| Offside Front Brake hose twisted |3.6.B.4c| | 1 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement rear bush |2.4.G.2| | 1 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 1 |
| Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Rear Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Front Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Offside Front Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Central Lower Engine mounting damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Offside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt top gaiter |2.4.G.2| | 1 |
| Bonnet retaining device ineffective |8.4.2| | 1 |
| Offside Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Front Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 1 |