| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 158 |
| Registration plate lamp issues | 109 |
| Windscreen wiper does not clear the windscreen effectively | 100 |
| Parking brake: efficiency below requirements |3.7.B.7| | 84 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 59 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 55 |
| Brake pipe excessively corroded | 55 |
| Offside Steering rack gaiter split |2.2.D.2d| | 53 |
| Rear parking brake recording little or no effort | 46 |
| Parking brake lever has no reserve travel |3.1.6b| | 42 |
| Horn not working |1.6.2a| | 40 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 34 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 32 |
| Registration plate issues | 30 |
| Offside Rear fog lamp not working |1.3.2b| | 26 |
| Nearside Stop lamp not working |1.2.1b| | 25 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 24 |
| Offside Stop lamp not working |1.2.1b| | 22 |
| Offside Front Steering rack gaiter split |2.2.D.2d| | 22 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 20 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 19 |
| Brakes imbalanced across an axle | 18 |
| Offside Rear Stop lamp not working |1.2.1b| | 18 |
| Emissions not tested |7.0| | 16 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 14 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 14 |
| Anti-lock braking system warning lamp indicates an ABS fault | 12 |
| Service brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 11 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 11 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 9 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 9 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 8 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 7 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 7 |
| Nearside Rear Stop lamp not working |1.2.1b| | 7 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 7 |
| Nearside Steering rack insecure |2.2.B.1a| | 7 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 6 |
| Front brake application uneven | 6 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 6 |
| Steering rack insecure |2.2.B.1a| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Nearside Front Anti-roll bar linkage fractured |2.4.G.1| | 6 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 5 |
| Rear fog lamp not working |1.3.2b| | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Offside Obligatory mirror insecure |8.1.1| | 5 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 5 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 5 |
| Offside Front Obligatory mirror insecure |8.1.1| | 5 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 5 |
| Steering rack gaiter split |2.2.D.2d| | 5 |
| Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 4 |
| Front Exhaust system not adequately supported |7.1.1| | 4 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 4 |
| Centre Rear Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Nearside Steering component mounting prescribed area is fractured |2.2.C.1h| | 4 |
| Battery insecure |1.9.1| | 4 |
| Nearside Front Steering rack insecure |2.2.B.1a| | 4 |
| Rear Rear fog lamp not working |1.3.2b| | 4 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 3 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 3 |
| Offside Front Seat belt insecurely fixed to the seat |5.2.1a| | 3 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Offside Front Anti-roll bar linkage missing |2.4.G.1| | 3 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 3 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 3 |
| Windscreen wiper blade insecure | 3 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Nearside front brake binding |3.7.B.1| | 3 |
| Nearside Front Steering component mounting prescribed area is fractured |2.2.C.1h| | 3 |
| Steering component mounting prescribed area is fractured |2.2.C.1h| | 3 |
| Rear brake application uneven | 3 |
| Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 3 |
| Nearside Front Valve stem seriously damaged |4.1.D.1e| | 3 |
| Offside Front Valve stem seriously damaged |4.1.D.1e| | 3 |
| Nearside Rear Seat belt retracting mechanism defective |5.2.5b| | 3 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 3 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 3 |
| Brake performance not tested |3.7.A.1| | 2 |
| Nearside Front Seat belt has a cut which has significantly weakened the webbing |5.2.2a| | 2 |
| Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Offside Front All position lamps not working |1.1.A.3b| | 2 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 2 |
| Rear reflector missing |1.5.1a| | 2 |
| Nearside Front Anti-roll bar linkage missing |2.4.G.1| | 2 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Nearside Steering rack cracked and unserviceable |2.2.C.1d| | 2 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 2 |
| Nearside Rear Brake back plate|s| securing device excessively deteriorated |3.5.1j| | 2 |
| Offside Rear Brake back plate|s| securing device excessively deteriorated |3.5.1j| | 2 |
| Power steering pump drive system defective |2.3.6| | 2 |
| Exhaust system not adequately supported |7.1.1| | 2 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 2 |
| Rear Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Power steering pipe|s| or hose|s| leaking |2.3.3b| | 2 |
| Offside Steering rack gaiter insecure |2.2.D.2d| | 2 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 2 |
| Centre Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 2 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Direction indicators not working |1.4.A.2c| | 2 |
| Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c| | 2 |
| Offside Front Direction indicator insecure |1.4.A.2b| | 2 |
| Nearside Front Anti-roll bar fractured |2.4.G.1| | 2 |
| Rear brake binding | 2 |
| Offside Front brake disc excessively pitted |3.5.1h| | 2 |
| Windscreen has damage | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Fuel tank leaking |7.2.3| | 2 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 2 |
| Anti-roll bar linkage fractured |2.4.G.1| | 2 |
| Offside Front Direction indicator not working |1.4.A.2c| | 2 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Offside Rear Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 2 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 2 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 2 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Centre Stop lamp not working |1.2.1b| | 2 |
| Bonnet retaining device ineffective |8.4.2| | 2 |
| Offside Front brake disc excessively scored |3.5.1h| | 2 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 2 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 2 |
| Nearside front brake juddering severely |3.7.A.2b| | 2 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 2 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 2 |
| Stop lamp obscured more than 50% |1.2.1c| | 2 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 2 |
| Offside Obligatory mirror missing |8.1.1| | 2 |
| Rear fog lamp switch faulty |1.3.1a| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Nearside Rear Valve stem seriously damaged |4.1.D.1e| | 2 |
| Offside Rear Valve stem seriously damaged |4.1.D.1e| | 2 |
| Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 2 |
| Nearside Steering rack fractured and unserviceable |2.2.C.1d| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Power steering pump drive system missing |2.3.6| | 2 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Offside Rear Exhaust system not adequately supported |7.1.1| | 2 |