| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 88 |
| Parking brake: efficiency below requirements |3.7.B.7| | 80 |
| Registration plate lamp issues | 66 |
| Windscreen wiper does not clear the windscreen effectively | 44 |
| Registration plate issues | 32 |
| Rear brake binding | 31 |
| Rear parking brake recording little or no effort | 23 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 20 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 15 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 13 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 11 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 11 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 10 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 9 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 9 |
| Rear brake disc in such a condition that it is seriously weakened | 9 |
| Windscreen washer not working | 8 |
| Offside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 8 |
| Nearside Side repeater not working |1.4.A.2c| | 8 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 7 |
| Rear Mechanical brake component has restricted free movement | 7 |
| Front brake disc in such a condition that it is seriously weakened | 7 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 6 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 6 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 6 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 6 |
| Windscreen has damage | 6 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 5 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 5 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 5 |
| Offside Rear fog lamp not working |1.3.2b| | 5 |
| Parking brake lever has no reserve travel |3.1.6b| | 5 |
| Offside Headlamp cleaning device inoperative |1.7.2| | 4 |
| Anti-lock braking system warning lamp indicates an ABS fault | 4 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour |8.2.2.2 |d|| | 4 |
| Nearside Headlamp cleaning device inoperative |1.7.2| | 4 |
| Hazard warning lamps inoperative |1.4.B.1b| | 4 |
| Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 4 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 4 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 3 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 3 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Emissions not tested |7.0| | 3 |
| Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Power steering malfunctioning (2.1.5 (a)) | 3 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 3 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Power steering component|s| leaking |2.3.3b| | 3 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 3 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Front Headlamp cleaning device inoperative |1.7.2| | 3 |
| Rear brake application uneven | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 3 |
| Front brake excessively fluctuating | 3 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 2 |
| Offside Front Road wheel cracked |4.2.A.1a| | 2 |
| Brakes imbalanced across an axle | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Offside Side repeater excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 2 |
| Offside Headlamp incorrect colour |1.7.5b| | 2 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Offside Side repeater not working |1.4.A.2c| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Brake performance not tested |1.2.1 |g|| | 2 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Offside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 2 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 2 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 2 |
| Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Front Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b| | 2 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 2 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 2 |
| Nearside Front Road wheel cracked |4.2.A.1a| | 2 |
| Nearside Rear Other passenger door cannot be opened from outside the vehicle (6.2.3 (a)) | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Front Power steering pipe|s| or hose|s| leaking |2.3.3b| | 2 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users |8.2.2.2 |c|| | 2 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 2 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 2 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 2 |
| Horn not working |1.6.2a| | 2 |
| Offside Rear Brake hose leaking |3.6.A.1| | 2 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Body has a sharp edge caused by damage |6.1.C.1| | 2 |
| Nearside Front Headlamp cleaning device inoperative |1.7.2| | 2 |