| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 332 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 270 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 257 |
| Windscreen wiper does not clear the windscreen effectively | 244 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 215 |
| Nearside Stop lamp not working |1.2.1b| | 125 |
| Registration plate issues | 119 |
| Offside Stop lamp not working |1.2.1b| | 112 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 106 |
| Registration plate lamp issues | 99 |
| Brake pipe excessively corroded | 96 |
| Horn not working |1.6.2a| | 95 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 84 |
| Offside Rear fog lamp not working |1.3.2b| | 80 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 73 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 69 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 66 |
| Front brake disc in such a condition that it is seriously weakened | 59 |
| Offside Rear Stop lamp not working |1.2.1b| | 52 |
| Brakes imbalanced across an axle | 50 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 48 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 48 |
| Nearside Rear Stop lamp not working |1.2.1b| | 47 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 42 |
| Parking brake: efficiency below requirements |3.7.B.7| | 40 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 40 |
| Rear parking brake recording little or no effort | 34 |
| Rear fog lamp not working |1.3.2b| | 31 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 30 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 29 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 29 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 28 |
| Rear brake binding | 28 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 26 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 24 |
| Emissions not tested |7.0| | 24 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 24 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 23 |
| Offside Front brake disc excessively pitted |3.5.1h| | 22 |
| Rear brake application uneven | 21 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 21 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 20 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 20 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 20 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 18 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 17 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 16 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 16 |
| Front brake application uneven | 15 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 15 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 15 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 15 |
| Rear Rear fog lamp not working |1.3.2b| | 15 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 15 |
| Service brake: efficiency below requirements |3.7.B.7| | 14 |
| Headlamp aim beam image kick up to the offside |1.8| | 13 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 12 |
| Windscreen has damage | 12 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 12 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Headlamp not working on main beam |1.7.5a| | 11 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 11 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 11 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 11 |
| Windscreen washer not working | 11 |
| Offside Rear fog lamp missing |1.3.2a| | 11 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 11 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 11 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 10 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 10 |
| Exhaust system not adequately supported |7.1.1| | 10 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 10 |
| Nearside Side repeater not working |1.4.A.2c| | 10 |
| Offside Headlamp not working on main beam |1.7.5a| | 10 |
| Rear fog lamp tell tale not working |1.3.1b| | 9 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 9 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 9 |
| Rear Mechanical brake component has restricted free movement | 9 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 8 |
| Anti-lock braking system warning lamp indicates an ABS fault | 8 |
| Exhaust emits dense blue smoke at idle |7.3.A.2b| | 8 |
| All position lamps not working |1.1.A.3b| | 8 |
| Offside Obligatory mirror missing |8.1.1| | 8 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 8 |
| Stop lamp remains on when the brakes are released | 8 |
| Nearside Front Body has a sharp edge caused by damage |6.1.C.1| | 8 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 7 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 7 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 7 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 7 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 7 |
| Offside Side repeater not working |1.4.A.2c| | 7 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 7 |
| Driver`s door cannot be opened from outside the vehicle |6.2.B.1b| | 7 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 7 |
| Brake hose excessively deteriorated | 7 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 7 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 7 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 7 |
| Rear Exhaust system not adequately supported |7.1.1| | 6 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 6 |
| Nearside Headlamp aim beam image kick up to the offside |1.6.B1| | 6 |
| Offside Headlamp aim beam image kick up to the offside |1.6.B1| | 6 |
| Front brake disc excessively pitted |3.5.1h| | 6 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 6 |
| Rear Stop lamp not working |1.2.1b| | 6 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 6 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 6 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 6 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 6 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 6 |
| Emissions not tested |7.3.A.1| | 6 |
| Nearside Front Front wheel bearing has excessive play |2.5.A.3c| | 6 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 6 |
| Offside Front Body has a sharp edge caused by damage |6.1.C.1| | 6 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 6 |