| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 9 |
| Registration plate issues | 7 |
| Windscreen wiper does not clear the windscreen effectively | 6 |
| Nearside Stop lamp not working |1.2.1b| | 5 |
| Brake pipe excessively corroded | 5 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 5 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 5 |
| Registration plate lamp issues | 5 |
| Rear parking brake recording little or no effort | 5 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 5 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 4 |
| Offside Stop lamp not working |1.2.1b| | 4 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 4 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 4 |
| Horn not working |1.6.2a| | 3 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Rear brake binding | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Brake pipe inadequately clipped |3.6.B.1| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 2 |
| Brakes imbalanced across an axle | 2 |
| Front brake excessively fluctuating | 2 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 2 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Rear fog lamp not working |1.3.2b| | 2 |
| Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 1 |
| Nearside Rear fog lamp emits a light other than red |1.3.2e| | 1 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Nearside Front Body insecure and dangerous to other road users |6.1.B.1b| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Front Road wheel distorted |4.2.A.1a| | 1 |
| Offside Rear Road wheel distorted |4.2.A.1a| | 1 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Centre Front 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 Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Main beam `tell-tale` not working |1.7.4c| | 1 |
| Rear brake application uneven | 1 |
| Rear Exhaust has a major leak of exhaust gases backbox |7.1.2| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Offside Rear coil spring fractured |2.4.C.1a| | 1 |
| Emissions not tested |7.0| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Emissions not tested |7.3.A.1| | 1 |
| Driver`s door cannot be opened from outside the vehicle |6.2.B.1b| | 1 |
| Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 1 |
| Brake pedal spongy |3.3.B.1b| | 1 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Nearside Rear Drive shaft which forms part of the suspension coupling gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e| | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c| | 1 |
| Offside Rear Rear fog lamp emits a light other than red |1.3.2e| | 1 |
| Exhaust emissions likely to be affected by an exhaust leak (8.2.2.1 (b)) | 1 |
| Emissions not tested (8.2.1.2 (d)) | 1 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Obligatory mirror missing (3.3 (a)) | 1 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Rear fog lamp excessively deteriorated so that it is not visible from a reasonable distance |1.3.2d| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Front Direction indicators not working |1.4.A.2c| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Windscreen washer not working | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Front brake application uneven | 1 |
| Offside Stop lamp insecure |1.2.1a| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Road wheel bead rim badly distorted |4.2.A.1a| | 1 |
| Offside Rear fog lamp missing |1.3.2a| | 1 |
| Front brake disc excessively pitted |3.5.1h| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Offside Rear fog lamp insecure |1.3.2a| | 1 |
| Offside Rear Body has a sharp edge caused by damage bumper |6.1.C.1| | 1 |
| Rear fog lamp tell tale missing |1.3.1b| | 1 |
| Rear Rear fog lamp not working |1.3.2b| | 1 |