| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 915 |
| Windscreen wiper does not clear the windscreen effectively | 605 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 579 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 459 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 408 |
| Offside Stop lamp not working |1.2.1b| | 391 |
| Nearside Stop lamp not working |1.2.1b| | 346 |
| Registration plate lamp issues | 339 |
| Registration plate issues | 321 |
| Horn not working |1.6.2a| | 318 |
| Brake pipe excessively corroded | 216 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 204 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 193 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 178 |
| Front brake disc in such a condition that it is seriously weakened | 176 |
| Brakes imbalanced across an axle | 174 |
| Offside Rear fog lamp not working |1.3.2b| | 164 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 156 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 140 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 125 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 124 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 119 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 118 |
| Nearside Rear Stop lamp not working |1.2.1b| | 117 |
| Offside Rear Stop lamp not working |1.2.1b| | 116 |
| Rear parking brake recording little or no effort | 84 |
| Emissions not tested |7.0| | 76 |
| Offside Front brake disc excessively pitted |3.5.1h| | 66 |
| Rear fog lamp not working |1.3.2b| | 65 |
| Rear brake application uneven | 61 |
| Service brake: efficiency below requirements |3.7.B.7| | 60 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 55 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 54 |
| Parking brake: efficiency below requirements |3.7.B.7| | 54 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 54 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 52 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 50 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 48 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 46 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 46 |
| Offside Headlamp not working on main beam |1.7.5a| | 45 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 44 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 43 |
| Windscreen has damage | 42 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 42 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 41 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 40 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 39 |
| Nearside Headlamp not working on main beam |1.7.5a| | 38 |
| Windscreen washer not working | 37 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 34 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 34 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 32 |
| Stop lamp not working |1.2.1b| | 32 |
| Rear brake binding | 32 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 32 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 32 |
| Driver`s door cannot be opened from outside the vehicle |6.2.B.1b| | 32 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 31 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 30 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 30 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 29 |
| Offside Rear fog lamp emits a light other than red |1.3.2e| | 29 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 29 |
| All position lamps not working |1.1.A.3b| | 28 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 25 |
| Front brake disc excessively pitted |3.5.1h| | 25 |
| Rear Rear fog lamp not working |1.3.2b| | 24 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 23 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 23 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 22 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 22 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 21 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 20 |
| Front brake application uneven | 20 |
| Offside Rear coil spring broken |2.4.C.1a| | 20 |
| Headlamp aim beam image kick up to the offside |1.8| | 20 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 20 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 20 |
| Offside Rear fog lamp missing |1.3.2a| | 19 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 19 |
| Nearside Side repeater not working |1.4.A.2c| | 19 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 18 |
| Steering system excessively tight |2.2.D.1| | 18 |
| Nearside Rear coil spring broken |2.4.C.1a| | 18 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 18 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 18 |
| Offside Side repeater not working |1.4.A.2c| | 18 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 17 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 17 |
| Offside Rear coil spring fractured |2.4.C.1a| | 17 |
| Offside Obligatory mirror missing |8.1.1| | 17 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 17 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 17 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 17 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 17 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 16 |
| Brake pedal spongy |3.3.B.1b| | 16 |
| Offside Front Body has a sharp edge caused by damage |6.1.C.1| | 16 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 16 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 16 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 16 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 16 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 15 |
| Rear Stop lamp not working |1.2.1b| | 15 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 15 |
| Offside Headlamp aim not tested |1.8.A.1c| | 15 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 15 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 15 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 14 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 14 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits |8.2.1.2 |b|| | 14 |
| Horn not working (7.7 (a)) | 14 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 14 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 14 |
| Nearside Headlamp aim not tested |1.8.A.1c| | 14 |