| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 65 |
| Windscreen wiper does not clear the windscreen effectively | 62 |
| Registration plate lamp issues | 51 |
| Parking brake: efficiency below requirements |3.7.B.7| | 38 |
| Brake pipe excessively corroded | 34 |
| Brakes imbalanced across an axle | 27 |
| Rear parking brake recording little or no effort | 23 |
| Rear brake binding | 19 |
| Parking brake lever has no reserve travel |3.1.6b| | 17 |
| Registration plate issues | 16 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 15 |
| Rear fog lamp not working |1.3.2b| | 15 |
| Battery insecure |1.9.1| | 15 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 14 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 12 |
| Service brake: efficiency below requirements |3.7.B.7| | 11 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 11 |
| Rear brake application uneven | 11 |
| Nearside Stop lamp not working |1.2.1b| | 10 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 10 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Offside Stop lamp not working |1.2.1b| | 8 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 8 |
| Anti-lock braking system warning lamp indicates an ABS fault | 8 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 8 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 8 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Rear fog lamp tell tale not working |1.3.1b| | 7 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 7 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 7 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 6 |
| Windscreen has damage | 6 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 6 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 6 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 5 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 5 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 5 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 4 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 4 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 4 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 4 |
| Horn not working |1.6.2a| | 4 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 4 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 4 |
| Offside Rear fog lamp not working |1.3.2b| | 4 |
| Nearside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 4 |
| Rear fog lamp switch faulty |1.3.1a| | 4 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 4 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 3 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 3 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 3 |
| Offside Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Exhaust emissions exceed default limit of 1.5m-1 (8.2.2.2 (b)) | 3 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 3 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 3 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Front Seat belt retracting mechanism defective |5.2.5b| | 3 |
| Front brake application uneven | 3 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Emissions not tested |8.2.2.2 |e|| | 3 |
| Nearside Rear Shock absorbers has a serious fluid leak | 3 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Battery insecure and likely to fall from carrier (4.13 (a) (ii)) | 2 |
| Front brake excessively fluctuating | 2 |
| Nearside Side repeater not working |1.4.A.2c| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 2 |
| Brake hose damaged | 2 |
| Offside Rear Shock absorbers has a serious fluid leak | 2 |
| 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| | 2 |
| Windscreen wiper blade insecure | 2 |
| Nearside Headlamp not working on main beam |1.7.5a| | 2 |
| Offside Headlamp not working on main beam |1.7.5a| | 2 |
| Direction indicators not working |1.4.A.2c| | 2 |
| Speedometer cannot be illuminated. |6.7.3| | 2 |
| Speedometer cannot be illuminated (7.8 (c) (ii)) | 2 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 2 |
| Offside Front Lower Ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 2 |
| Offside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 2 |
| Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 2 |
| Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 2 |
| Offside Side repeater not working |1.4.A.2c| | 2 |
| Trailer electrical socket damaged so that lead cannot be securely connected |1.9.3b| | 2 |
| Reversing lamp inoperative (4.6.1 (a)) | 2 |
| Rear fog lamp switch inoperative (4.5.3 (a)) | 2 |
| Offside 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 constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 2 |
| Bonnet cannot be secured in the closed position |8.4.1| | 2 |
| Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 2 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 2 |
| Bonnet retaining device ineffective |8.4.2| | 2 |
| Windscreen washer not working | 2 |
| Offside Front Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Nearside Front Outer Seat belt anchorage prescribed area strength or continuity significantly reduced sill (7.1.1 (a) (i)) | 2 |
| Nearside Rear Inner Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill (5.3.6 (a) (i)) | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 2 |
| Battery insecure and likely to cause a short circuit (4.13 (a) (ii)) | 2 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 2 |