| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 584 |
| Headlamp aim out of alignment | 268 |
| Windscreen wiper does not clear the windscreen effectively | 253 |
| Registration plate lamp issues | 240 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 124 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 115 |
| Nearside Stop lamp not working |1.2.1b| | 110 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 100 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 100 |
| Parking brake: efficiency below requirements |3.7.B.7| | 90 |
| Registration plate issues | 78 |
| Offside Stop lamp not working |1.2.1b| | 78 |
| Rear parking brake recording little or no effort | 64 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 56 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 55 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 52 |
| Brakes imbalanced across an axle | 44 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 42 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 41 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 41 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 41 |
| Nearside Rear Stop lamp not working |1.2.1b| | 41 |
| Rear Exhaust system not adequately supported |7.1.1| | 41 |
| Offside Rear coil spring fractured |2.4.C.1a| | 36 |
| Front brake disc in such a condition that it is seriously weakened | 36 |
| Brake hose excessively deteriorated | 34 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 32 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 32 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 31 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 30 |
| Offside Rear Stop lamp not working |1.2.1b| | 27 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 27 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 26 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 25 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 25 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 24 |
| Brake load sensing valve linkage seized |3.6.E.3| | 22 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 21 |
| Exhaust system not adequately supported |7.1.1| | 21 |
| Emissions not tested |7.0| | 20 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 20 |
| Rear brake binding | 19 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 18 |
| Offside Rear coil spring broken |2.4.C.1a| | 18 |
| Battery insecure |1.9.1| | 17 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 16 |
| Centre Exhaust system not adequately supported |7.1.1| | 16 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 16 |
| Nearside Rear coil spring broken |2.4.C.1a| | 16 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 15 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 15 |
| Offside Rear fog lamp not working |1.3.2b| | 14 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 14 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 14 |
| Nearside Headlamp insecure |1.7.3| | 14 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 14 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 14 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 13 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 13 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 13 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 13 |
| Rear brake application uneven | 13 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 12 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 11 |
| Offside Front coil spring broken |2.4.C.1a| | 11 |
| Service brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 11 |
| Brake load sensing valve seized |3.6.E.3| | 11 |
| Windscreen has damage | 10 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 10 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 10 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 10 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 10 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 9 |
| Windscreen wiper blade insecure | 9 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 9 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 8 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 8 |
| Parking brake lever has no reserve travel |3.1.6b| | 8 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 8 |
| Front position lamp|s| not working |1.1.A.3b| | 8 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 8 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 8 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 8 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 8 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 8 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 8 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 8 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 7 |
| Front brake application uneven | 7 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 7 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 7 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 7 |
| Offside Front brake disc excessively pitted |3.5.1h| | 7 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 7 |
| Offside Headlamp insecure |1.7.3| | 7 |
| Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 7 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 6 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 6 |
| Offside Front Direction indicator not working |1.4.A.2c| | 6 |
| Offside front brake binding |3.7.B.1| | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Power steering fluid level below minimum |2.3.1| | 6 |
| Offside Front Front constant velocity joint gaiter split |2.5.C.1a| | 6 |
| Rear Exhaust mounting missing |7.1.1b| | 6 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 6 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 6 |