| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 1477 |
| Windscreen wiper does not clear the windscreen effectively | 1129 |
| Headlamp aim out of alignment | 907 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 314 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 303 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 296 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 271 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 259 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 256 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 244 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 224 |
| Registration plate issues | 222 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 212 |
| Offside Front coil spring broken |2.4.C.1a| | 200 |
| Brake pipe excessively corroded | 196 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 162 |
| Front brake disc in such a condition that it is seriously weakened | 150 |
| Brakes imbalanced across an axle | 149 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 137 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 126 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 123 |
| Parking brake: efficiency below requirements |3.7.B.7| | 121 |
| Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 118 |
| Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 116 |
| Parking brake lever has no reserve travel |3.1.6b| | 111 |
| Battery insecure |1.9.1| | 108 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 105 |
| Nearside Front coil spring broken |2.4.C.1a| | 104 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 101 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 99 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 96 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 93 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 91 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 89 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 85 |
| Rear parking brake recording little or no effort | 83 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 81 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 73 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 73 |
| Centre Stop lamp not working |1.2.1b| | 70 |
| Nearside Stop lamp not working |1.2.1b| | 68 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 66 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 61 |
| Offside Front coil spring fractured |2.4.C.1a| | 55 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 55 |
| Anti-lock braking system warning lamp indicates an ABS fault | 54 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 54 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 53 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 53 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 52 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 51 |
| Horn not working |1.6.2a| | 51 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 50 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 49 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 49 |
| Offside Stop lamp not working |1.2.1b| | 48 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 47 |
| Windscreen wiper blade insecure | 46 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 45 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 44 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 43 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 42 |
| Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 41 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 41 |
| Nearside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 41 |
| Offside Headlamp has a product on the lens so that the light output is severely reduced |1.7.5a| | 40 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 40 |
| Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b| | 38 |
| Offside Front coil spring incomplete |2.4.C.1a| | 38 |
| Offside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 38 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 38 |
| Nearside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 36 |
| Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a| | 36 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 36 |
| Windscreen has damage | 35 |
| Brake hose excessively deteriorated | 35 |
| Emissions not tested |7.0| | 35 |
| Nearside Headlamp insecure |1.7.3| | 35 |
| Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 34 |
| Front brake application uneven | 34 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 34 |
| Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c| | 33 |
| Offside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 32 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 32 |
| Nearside Indicator tell tale inoperative |1.4.A.2a| | 32 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 31 |
| 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| | 31 |
| Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a| | 31 |
| Offside Headlamp insecure |1.7.3| | 31 |
| 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| | 30 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 30 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 30 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 30 |
| Windscreen washer not working | 29 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 28 |
| Nearside Front Side repeater incorrect colour |1.4.A.2f| | 27 |
| Nearside Rear Stop lamp not working |1.2.1b| | 26 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 26 |
| Offside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 26 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 26 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 24 |
| Centre Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 24 |
| Nearside Front Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2| | 23 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 23 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 23 |
| Offside Front Headlamp insecure |1.7.3| | 22 |
| Offside Rear fog lamp not working |1.3.2b| | 22 |
| Nearside Front Coil spring fractured or broken |5.3.1 |b| |i|| | 22 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 22 |
| Nearside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 20 |
| Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 20 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 20 |
| Centre Rear Seat belt retracting mechanism defective |5.2.5b| | 20 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 20 |