| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Service brake: efficiency below requirements |3.7.B.7| | 20 |
| Windscreen wiper does not clear the windscreen effectively | 16 |
| Brakes imbalanced across an axle | 15 |
| Parking brake: efficiency below requirements |3.7.B.7| | 14 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 12 |
| Parking brake lever has no reserve travel |3.1.6b| | 11 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 11 |
| Brake pipe excessively corroded | 11 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 6 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 5 |
| Registration plate lamp issues | 5 |
| Emissions not tested |7.0| | 5 |
| Rear parking brake recording little or no effort | 5 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 4 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 4 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 4 |
| Offside Rear brake disc excessively pitted |3.5.1h| | 4 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 3 |
| Offside Front front brake binding |3.7.B.1| | 3 |
| Rear brake binding | 3 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 3 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 3 |
| Front brake application uneven | 3 |
| Offside front brake binding |3.7.B.1| | 3 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 3 |
| Nearside Front front brake binding |3.7.B.1| | 3 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 3 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Rear brake application uneven | 2 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 2 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 2 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 2 |
| Nearside front brake binding |3.7.B.1| | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Rear brake disc excessively pitted |3.5.1h| | 1 |
| Offside front brake juddering severely |3.7.A.2b| | 1 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Offside Front brake disc contaminated by oil |3.5.1h| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Front Braking system leaking |3.6.A.1| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Parking brake lever is impeded in its travel |3.1.6c| | 1 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 1 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Offside Front Brake performance not tested |3.7.A.1| | 1 |
| Offside Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 1 |
| Offside Rear Exhaust system not adequately supported |7.1.1| | 1 |
| Parking brake lever ratchet mechanism is broken |3.1.5| | 1 |
| Nearside Side repeater not working |1.4.A.2c| | 1 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Front Brake hose leaking |3.6.A.1| | 1 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Hazard warning lamps inoperative x6 |1.4.B.1b| | 1 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Brake performance not tested burst hose |3.7.A.1| | 1 |
| Nearside Headlamp insecure |1.7.3| | 1 |
| Power steering malfunctioning |2.3.3a| | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Nearside Rear Brake valve leaking such that brake functionality is affected |1.1.7 |d| |ii|| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Exhaust has a major leak of exhaust gases rear silencer |7.1.2| | 1 |
| Offside Rear Road wheel distorted |4.2.A.1a| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Offside Front brake disc excessively pitted |3.5.1h| | 1 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 1 |
| Exhaust engine idle speed too high |7.3.D.1| | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Front Headlamp insecure |1.7.3| | 1 |
| Offside Headlamp aim not tested |1.8.A.1c| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Offside Front Anti-roll bar linkage insecure ball joint separated |2.4.G.1| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Nearside Front brake caliper has restricted free movement |3.5.1k| | 1 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Offside Obligatory mirror insecure |8.1.1| | 1 |
| Offside Front front brake juddering severely |3.7.A.2b| | 1 |
| Service brake: efficiency below requirements |3.7.D.4| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Seat belt insecurely fixed to the vehicles structure |5.2.1a| | 1 |
| Front brake excessively fluctuating | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Front Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Nearside Track rod end loose |2.2.B.1d| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Headlamp not working on main beam |1.7.5a| | 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 Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Front Outer Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Rear Road wheel fixing loose (5.2.1 (a) (i)) | 1 |
| Offside Rear Road wheel fixing loose (5.2.1 (a) (i)) | 1 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 1 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Rear Exhaust emissions likely to be affected by an exhaust leak (8.2.1.1 (b)) | 1 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1 |
| Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Emissions not tested exhaust blocked (8.2.1.2 (d)) | 1 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Brake pipe leaking on a hydraulic braking system front to rear pipe connection (1.1.11 (b) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Brake valve leaking (1.1.7 (d) (i)) | 1 |
| Nearside Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Brake hose excessively twisted touching road wheel (1.1.12 (b) (ii)) | 1 |
| Offside Front Brake hose excessively twisted touching road wheel (1.1.12 (b) (ii)) | 1 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 1 |