| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 143 |
| Headlamp aim out of alignment | 108 |
| Registration plate lamp issues | 85 |
| Windscreen wiper does not clear the windscreen effectively | 70 |
| Parking brake: efficiency below requirements |3.7.B.7| | 57 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 50 |
| Rear parking brake recording little or no effort | 41 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 38 |
| Nearside Stop lamp not working |1.2.1b| | 33 |
| Offside Stop lamp not working |1.2.1b| | 27 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 23 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 21 |
| Rear Exhaust system not adequately supported |7.1.1| | 19 |
| Brakes imbalanced across an axle | 19 |
| Anti-lock braking system warning lamp indicates an ABS fault | 19 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 17 |
| Battery insecure |1.9.1| | 17 |
| Front brake disc in such a condition that it is seriously weakened | 16 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 15 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 15 |
| Registration plate issues | 14 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 14 |
| Nearside Rear coil spring incomplete |2.4.C.1a| | 14 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 14 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 12 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 12 |
| Offside Rear coil spring incomplete |2.4.C.1a| | 12 |
| Offside Rear Stop lamp not working |1.2.1b| | 12 |
| Offside Rear coil spring fractured |2.4.C.1a| | 11 |
| Offside Front coil spring incomplete |2.4.C.1a| | 10 |
| Horn not working |1.6.2a| | 10 |
| Rear brake binding | 10 |
| Offside Rear coil spring broken |2.4.C.1a| | 10 |
| Brake hose excessively deteriorated | 10 |
| Nearside Front constant velocity joint gaiter split |2.5.C.1a| | 10 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Nearside Rear coil spring fractured |2.4.C.1a| | 9 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 8 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 8 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Headlamp insecure |1.7.3| | 8 |
| Rear brake application uneven | 8 |
| Nearside Rear Stop lamp not working |1.2.1b| | 8 |
| Windscreen has damage | 7 |
| Nearside Rear coil spring broken |2.4.C.1a| | 7 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 6 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 6 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 6 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 6 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 6 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 6 |
| Nearside Front coil spring broken |2.4.C.1a| | 6 |
| Nearside Headlamp insecure |1.7.3| | 6 |
| Windscreen wiper blade insecure | 6 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 6 |
| rear parking |secondary| brakes imbalanced | 6 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 6 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 5 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 5 |
| Emissions not tested |7.0| | 5 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 5 |
| Rear fog lamp not working |1.3.2b| | 5 |
| 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| | 5 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 5 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 5 |
| Offside Front coil spring broken |2.4.C.1a| | 5 |
| 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| | 5 |
| Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 4 |
| Offside Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 4 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 4 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Service brake: efficiency below requirements |3.7.B.7| | 4 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 4 |
| Rear Exhaust mounting missing |7.1.1b| | 4 |
| Brake load sensing valve linkage seized |3.6.E.3| | 4 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 4 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 4 |
| Nearside Front position lamp|s| incorrect colour |1.1.A.3e| | 3 |
| Offside Front position lamp|s| incorrect colour |1.1.A.3e| | 3 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 3 |
| Nearside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 3 |
| Nearside Front Lower Ball joint has excessive play |2.2.B.1f| | 3 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 3 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 3 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 3 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Rear fog lamp tell tale not working |1.3.1b| | 3 |
| Offside Headlamp not working on main beam |1.7.5a| | 3 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 3 |
| Nearside Front Front constant velocity joint gaiter split |2.5.C.1a| | 3 |
| Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 3 |
| Nearside Front Lower Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Nearside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 3 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Exhaust system not adequately supported |7.1.1| | 3 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 3 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 2 |
| Offside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 2 |
| Nearside Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 2 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 2 |
| Headlamp switch faulty |1.7.1| | 2 |
| Front Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b| | 2 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 2 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 2 |
| Front Windscreen wiper not operating automatically when switched on |8.2.1b| | 2 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Nearside Front Wheel bolt|s| missing |4.2.A.1e| | 2 |
| Offside Side repeater not working |1.4.A.2c| | 2 |
| Rear fog lamp switch faulty |1.3.1a| | 2 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Fuel cap/sealing device mounting flange/sealing method defective |7.2.4c| | 2 |
| Nearside Front All position lamps not working |1.1.A.3b| | 2 |
| Nearside Front Direction indicators incorrect colour |1.4.A.2f| | 2 |
| Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| 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| | 2 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 2 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 2 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 2 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 2 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Headlamp not working on main beam |1.7.5a| | 2 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 2 |
| Centre Seat belt retracting mechanism defective |5.2.5b| | 2 |
| Offside Rear Coil spring fractured or broken |5.3.1 |b| |i|| | 2 |
| Offside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Brake load sensing valve seized |3.6.E.3| | 2 |
| Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c| | 2 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 2 |
| Nearside Front Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Offside Rear wheel bearing has excessive play |2.6.2| | 2 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 2 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 2 |
| Exhaust emits dense blue smoke at idle |7.3.A.2b| | 2 |
| Offside Front Brake pipe fouled by moving parts |3.6.B.2a| | 2 |
| Nearside Front brake caliper securing device loose |3.5.1j| | 2 |
| Offside Front brake caliper securing device loose |3.5.1j| | 2 |
| Front engine mounting deteriorated resulting in excessive movement |6.1.D.1a| | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Direction indicators incorrect colour |1.4.A.2f| | 2 |
| Offside Obligatory mirror insecure |8.1.1| | 2 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced (4.1.4 (b)) | 2 |
| Nearside Front Headlamp insecure |1.7.3| | 2 |
| Offside Rear Coil spring not correctly located |2.4.C.2| | 2 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 2 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 2 |
| rear brakes release unevenly |3.7.B.4| | 2 |
| Power steering inoperative |2.3.3a| | 2 |
| Nearside Front coil spring incomplete |2.4.C.1a| | 2 |