| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 125 |
| Brake pipe excessively corroded | 109 |
| Registration plate lamp issues | 99 |
| Brake hose excessively deteriorated | 81 |
| Parking brake: efficiency below requirements |3.7.B.7| | 69 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 55 |
| Registration plate issues | 45 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 45 |
| Windscreen wiper does not clear the windscreen effectively | 34 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 30 |
| Rear parking brake recording little or no effort | 30 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 24 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 24 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 22 |
| Nearside Stop lamp not working |1.2.1b| | 21 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 19 |
| Offside Stop lamp not working |1.2.1b| | 18 |
| Parking brake lever has no reserve travel |3.1.6b| | 17 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Brake hose damaged | 15 |
| Nearside Rear Stop lamp not working |1.2.1b| | 14 |
| Windscreen has damage | 13 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 13 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 12 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 11 |
| Nearside Side repeater not working |1.4.A.2c| | 11 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 11 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 11 |
| Anti-lock braking system warning lamp indicates an ABS fault | 10 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 10 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 9 |
| Nearside Rear Shock absorbers has a serious fluid leak | 8 |
| Offside Rear fog lamp not working |1.3.2b| | 8 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 8 |
| 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| | 8 |
| Offside Rear Shock absorbers has a serious fluid leak | 8 |
| Rear fog lamp not working |1.3.2b| | 7 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 7 |
| Brakes imbalanced across an axle | 7 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 7 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 6 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 6 |
| 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| | 6 |
| Exhaust emits excessive smoke or vapour of any colour |7.4.B.4| | 6 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 6 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 6 |
| Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Offside Rear Stop lamp not working |1.2.1b| | 6 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 5 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Offside Rear Rear position lamp|s| not working |1.1.A.3b| | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 5 |
| Offside Front Position lamp not working |4.2.1 |a|| | 5 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 5 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 5 |
| Rear brake binding | 5 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 5 |
| Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| Offside Front Shock absorbers has a serious fluid leak | 4 |
| Exhaust emissions exceed level of metered smoke for a turbo charged engine |8.2.2.2 |b|| | 4 |
| Nearside Outer Front constant velocity joint gaiter split |2.5.C.1a| | 4 |
| Rear Stop lamp not working |1.2.1b| | 4 |
| Exhaust emissions test aborted because smoke levels are significantly in excess of the specified limit values |8.2.2.2 |f|| | 4 |
| Offside Rear Stop lamp|s| not working |4.3.1 |a| |ii|| | 4 |
| Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 4 |
| Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 4 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 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 Rear Direction indicator incorrect colour |1.4.A.2f| | 4 |
| Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d)) | 3 |
| Offside Rear Air suspension unit totally deflated |2.4.D.1a| | 3 |
| Fuel system component leaking |7.2.3| | 3 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 3 |
| Offside Rear Air suspension has no suspension movement |2.4.D.5| | 3 |
| 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| | 3 |
| Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Offside Front Brake hose damaged and likely to fail (1.1.12 (a)) | 3 |
| Nearside Front Brake hose excessively damaged |3.6.B.4d| | 3 |
| Oil leaking excessively from engine |8.4.1 |a| |i|| | 3 |
| 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| | 3 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 3 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 3 |
| Service brake: efficiency below requirements |3.7.B.7| | 3 |
| 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| | 3 |
| Nearside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 3 |
| Offside Parking brake inoperative on one side |1.4.1 |a|| | 3 |
| 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| | 3 |
| Exhaust emits excessive smoke or vapour likely to obscure the vision of other road users |8.2.2.2 |c|| | 3 |
| Offside Rear fog lamp not working |4.5.1 |a| |ii|| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Nearside Rear Fluid suspension unit leaking |2.4.D.2| | 3 |
| Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3| | 3 |
| Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 3 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 3 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 3 |
| 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| | 3 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 3 |
| Exhaust emits dense blue smoke at idle |8.2.1.2 |f|| | 3 |
| Nearside Front Road wheel fixing missing |5.2.1 |a| |i|| | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 3 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 3 |
| Offside Rear Seat belt damaged sufficient to significantly weakened the webbing |5.2.2a| | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |