| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 919 |
| Registration plate lamp issues | 332 |
| Brakes imbalanced across an axle | 325 |
| Rear brake binding | 238 |
| Parking brake: efficiency below requirements |3.7.B.7| | 204 |
| Brake hose excessively deteriorated | 204 |
| Windscreen wiper does not clear the windscreen effectively | 200 |
| Rear parking brake recording little or no effort | 152 |
| Offside Stop lamp not working |1.2.1b| | 141 |
| Front brake disc in such a condition that it is seriously weakened | 131 |
| Nearside Stop lamp not working |1.2.1b| | 125 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 116 |
| Registration plate issues | 111 |
| Anti-lock braking system warning lamp indicates an ABS fault | 88 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 88 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 81 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 74 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 71 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 71 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 70 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 64 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 64 |
| Nearside Rear Stop lamp not working |1.2.1b| | 63 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 62 |
| Offside Front Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 60 |
| 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| | 58 |
| Offside Rear Stop lamp not working |1.2.1b| | 58 |
| Parking brake lever has no reserve travel |3.1.6b| | 58 |
| Windscreen has damage | 55 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 55 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 52 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 51 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 50 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 50 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 48 |
| Brake pipe excessively corroded | 47 |
| 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| | 45 |
| Rear brake application uneven | 45 |
| 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| | 44 |
| Windscreen washer not working | 44 |
| 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| | 43 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 41 |
| 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| | 39 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 38 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 38 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 37 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 37 |
| Front brake excessively fluctuating | 36 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 36 |
| Rear Mechanical brake component has restricted free movement | 34 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 34 |
| Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 34 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 32 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 32 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b)) | 31 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 30 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 30 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 30 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 29 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 29 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 28 |
| 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| | 28 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 28 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 28 |
| Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 28 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 28 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 27 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 27 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 27 |
| Offside Front Suspension arm corroded and seriously weakened |2.4.G.1| | 26 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 26 |
| Rear brake disc in such a condition that it is seriously weakened | 26 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 26 |
| Nearside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 26 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 25 |
| Nearside Front Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 25 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 25 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 25 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 25 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 25 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 24 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 23 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 22 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 22 |
| 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| | 22 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 22 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 22 |
| Offside Front Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 21 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 21 |
| Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 21 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 20 |
| Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 20 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 20 |
| Offside Front Lower Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 20 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 20 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 20 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 20 |
| Offside Front coil spring broken |2.4.C.1a| | 20 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 20 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 19 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 19 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 19 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 19 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 19 |
| Offside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 18 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 18 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 18 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 18 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 18 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn |5.3.4 |a| |i|| | 18 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 17 |
| Offside Front Suspension arm corroded and seriously weakened |5.3.3 |b| |i|| | 17 |
| Nearside Front Shock absorbers has a serious fluid leak | 17 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 17 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 16 |
| Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 16 |
| Offside Headlamp levelling device inoperative (4.1.5 (a)) | 16 |
| Front brake application uneven | 16 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 16 |
| Brake hose damaged | 16 |
| Offside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 15 |
| Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 15 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 15 |