| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 116555 |
| Headlamp aim out of alignment | 49301 |
| Windscreen wiper does not clear the windscreen effectively | 40026 |
| Registration plate lamp issues | 38701 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 23611 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 20942 |
| Parking brake: efficiency below requirements |3.7.B.7| | 20642 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 16160 |
| Nearside Stop lamp not working |1.2.1b| | 15330 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 15007 |
| Offside Stop lamp not working |1.2.1b| | 14138 |
| Rear parking brake recording little or no effort | 13867 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 11457 |
| Registration plate issues | 9420 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 9211 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 7695 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 7641 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 7448 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 7277 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 7152 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 6478 |
| Nearside Rear Stop lamp not working |1.2.1b| | 6236 |
| Offside Rear Stop lamp not working |1.2.1b| | 5689 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 5630 |
| Brakes imbalanced across an axle | 5550 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5370 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5312 |
| Centre Exhaust system not adequately supported |7.1.1| | 5090 |
| Front brake disc in such a condition that it is seriously weakened | 5061 |
| Brake hose excessively deteriorated | 4885 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 4832 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4749 |
| Emissions not tested |7.0| | 4629 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 4565 |
| Exhaust system not adequately supported |7.1.1| | 4261 |
| Rear Exhaust system not adequately supported |7.1.1| | 4149 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 3891 |
| Rear brake binding | 3835 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3643 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 3617 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 3502 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3442 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3237 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 3180 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 3163 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3030 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3015 |
| Offside Rear coil spring fractured |2.4.C.1a| | 2948 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 2828 |
| Service brake: efficiency below requirements |3.7.B.7| | 2710 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2702 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2673 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 2627 |
| Rear Brake load sensing valve linkage seized |3.6.E.3| | 2578 |
| Nearside Rear Shock absorber has an excessively worn bush |2.7.4| | 2536 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 2521 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2494 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 2375 |
| Battery insecure |1.9.1| | 2369 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 2336 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 2323 |
| Windscreen has damage | 2286 |
| Nearside Headlamp insecure |1.7.3| | 2282 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 2278 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 2196 |
| Windscreen wiper blade insecure | 2156 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 2137 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2117 |
| Parking brake lever has no reserve travel |3.1.6b| | 2096 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2041 |
| Offside Headlamp insecure |1.7.3| | 1946 |
| Centre Exhaust mounting missing |7.1.1b| | 1921 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1896 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 1864 |
| Offside Rear fog lamp not working |1.3.2b| | 1852 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 1839 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1796 |
| Rear brake application uneven | 1783 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1679 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 1656 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 1652 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 1614 |
| Front Exhaust system not adequately supported |7.1.1| | 1601 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 1584 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1529 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 1528 |
| Brake load sensing valve seized |3.6.E.3| | 1509 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1416 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 1375 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1359 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 1340 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 1302 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 1300 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 1296 |
| Horn not working |1.6.2a| | 1275 |
| Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1247 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 1240 |
| Exhaust mounting missing |7.1.1b| | 1223 |
| Offside Rear coil spring broken |2.4.C.1a| | 1209 |
| Rear Exhaust mounting missing |7.1.1b| | 1182 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 1127 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 1101 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 1080 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1046 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1015 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 1001 |
| Nearside Front Headlamp insecure |1.7.3| | 988 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 984 |
| Offside Front brake disc excessively pitted |3.5.1h| | 969 |
| Front position lamp|s| not working |1.1.A.3b| | 969 |
| Front brake application uneven | 958 |
| Nearside Rear coil spring broken |2.4.C.1a| | 931 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 927 |
| Front Direction indicator incorrect colour |1.4.A.2f| | 905 |
| Offside Front Headlamp insecure |1.7.3| | 893 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 844 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 833 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 825 |
| Offside Front Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 817 |