| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 256 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 203 |
| Registration plate issues | 165 |
| Windscreen wiper does not clear the windscreen effectively | 118 |
| Exhaust emissions hydrocarbon content excessive |7.3.B.1b| | 113 |
| Rear fog lamp tell tale not working |1.3.1b| | 93 |
| Registration plate lamp issues | 89 |
| Offside Rear fog lamp not working |1.3.2b| | 75 |
| Horn not working |1.6.2a| | 73 |
| Parking brake: efficiency below requirements |3.7.B.7| | 70 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 56 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 49 |
| Offside Rear fog lamp missing |1.3.2a| | 44 |
| Rear fog lamp not working |1.3.2b| | 43 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 42 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 39 |
| Brake pipe excessively corroded | 32 |
| Nearside Stop lamp not working |1.2.1b| | 29 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 28 |
| Battery insecure |1.9.1| | 28 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 27 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 27 |
| Rear parking brake recording little or no effort | 24 |
| Rear Rear fog lamp not working |1.3.2b| | 21 |
| Rear fog lamp switch missing |1.3.1a| | 20 |
| Brakes imbalanced across an axle | 19 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 18 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 17 |
| Front brake disc in such a condition that it is seriously weakened | 17 |
| Anti-lock braking system warning lamp indicates an ABS fault | 17 |
| Rear Rear fog lamp missing |1.3.2a| | 16 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 16 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 16 |
| Emissions not tested |7.0| | 15 |
| Rear fog lamp missing |1.3.2a| | 15 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 15 |
| Rear brake binding | 15 |
| Offside Front Direction indicator not working |1.4.A.2c| | 14 |
| Offside Rear Statutory seat belt missing |5.1.1| | 14 |
| Exhaust catalytic converter missing where one was fitted as standard |7.1.3| | 14 |
| Service brake: efficiency below requirements |3.7.B.7| | 13 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 13 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Nearside Rear Statutory seat belt missing |5.1.1| | 13 |
| Nearside Front Wheel nut|s| missing |4.2.A.1e| | 13 |
| Offside Front Wheel nut|s| missing |4.2.A.1e| | 13 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 13 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 13 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Windscreen has damage | 12 |
| Parking brake lever has no reserve travel |3.1.6b| | 12 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 12 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 11 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 11 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 11 |
| Brake hose has insufficient room to move | 10 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 10 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 10 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 10 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 10 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Nearside Side repeater not working |1.4.A.2c| | 9 |
| Offside Rear Rear fog lamp missing |1.3.2a| | 9 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 9 |
| Rear fog lamp tell tale missing |1.3.1b| | 9 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 9 |
| Offside Headlamp insecure |1.7.3| | 9 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 9 |
| Front brake application uneven | 9 |
| Offside Headlamp not working on main beam |1.7.5a| | 9 |
| Driver`s door cannot be opened from outside the vehicle |6.2.B.1b| | 8 |
| Nearside Headlamp not working on main beam |1.7.5a| | 8 |
| Rear Exhaust system not adequately supported |7.1.1| | 8 |
| Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b)) | 8 |
| Offside Stop lamp not working |1.2.1b| | 8 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 8 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Offside Side repeater not working |1.4.A.2c| | 7 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 7 |
| Nearside Headlamp insecure |1.7.3| | 7 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 7 |
| Exhaust emissions carbon monoxide content excessive (7.3.B.1a) | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 7 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 6 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 6 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 6 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 6 |
| Offside Rear Rear fog lamp emits a light other than red |1.3.2e| | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 6 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 6 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 6 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 6 |
| Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b)) | 6 |
| Parking brake: efficiency below requirements |3.7.D.4| | 6 |
| Nearside Steering rack gaiter split |2.2.D.2d| | 6 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 6 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 6 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Stop lamp not working |1.2.1b| | 5 |
| Offside Steering rack gaiter split |2.2.D.2d| | 5 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 5 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 5 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Horn control missing |1.6.1| | 5 |
| Windscreen wiper blade insecure | 5 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 5 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Rear Stop lamp not working |1.2.1b| | 5 |
| Brake performance not tested |3.7.A.1| | 5 |
| Nearside Front Steering rack gaiter split |2.2.D.2d| | 5 |
| Rear brake disc excessively pitted |3.5.1h| | 5 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 4 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 4 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 4 |
| Front passenger seat insecure |6.2.3| | 4 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 4 |
| Rear fog lamp emits a light other than red |1.3.2e| | 4 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 4 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 4 |
| Nearside Front Front position lamp|s| incorrect colour |1.1.A.3e| | 4 |
| Nearside Rear Braking system leaking |3.6.A.1| | 4 |
| Front Front position lamp|s| incorrect colour |1.1.A.3e| | 4 |
| Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 4 |
| Offside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 4 |
| Exhaust engine idle speed too high |7.3.D.1| | 4 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 4 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Centre Rear fog lamp not working |1.3.2b| | 4 |
| Offside front brake juddering severely |3.7.A.2b| | 4 |
| Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 4 |
| Nearside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 4 |
| Hazard warning switch faulty |1.4.B.1d| | 4 |
| Exhaust system not adequately supported |7.1.1| | 4 |
| Offside Front brake disc excessively pitted |3.5.1h| | 4 |
| Nearside Front Brake pipe inadequately clipped |3.6.B.1| | 4 |
| Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 4 |
| All position lamps not working |1.1.A.3b| | 4 |
| Windscreen washer not working | 4 |
| Driver`s seat insecure |6.2.A.1| | 4 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Front position lamp|s| incorrect colour |1.1.A.3e| | 4 |
| Brake hose excessively deteriorated | 4 |
| Offside Rear fog lamp insecure |1.3.2a| | 4 |
| Exhaust engine idle speed too high |7.3.A.2a| | 4 |
| Exhaust emits dense blue smoke at idle |7.3.A.2b| | 4 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 4 |