| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 541 |
| Registration plate lamp issues | 444 |
| Windscreen wiper does not clear the windscreen effectively | 308 |
| Headlamp aim out of alignment | 252 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 68 |
| Registration plate issues | 67 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 66 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 64 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 47 |
| Rear fog lamp not working |1.3.2b| | 40 |
| Offside Stop lamp not working |1.2.1b| | 38 |
| Nearside Stop lamp not working |1.2.1b| | 36 |
| Offside Rear fog lamp not working |1.3.2b| | 33 |
| Brakes imbalanced across an axle | 31 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 29 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 27 |
| Anti-lock braking system warning lamp indicates an ABS fault | 26 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 25 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 24 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 24 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 23 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 19 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 18 |
| Windscreen has damage | 17 |
| Offside Rear fog lamp not working (4.5.1 (a) (ii)) | 17 |
| Offside Front Position lamp not working |4.2.1 |a|| | 17 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 17 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 17 |
| Nearside Rear Stop lamp not working |1.2.1b| | 17 |
| Offside Front Shock absorbers has a serious fluid leak | 15 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 15 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 15 |
| Windscreen washer not working | 14 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 14 |
| Parking brake: efficiency below requirements |3.7.B.7| | 14 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 14 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 14 |
| Brake load sensing valve seized but ABS functioning (1.1.17 (c) (i)) | 13 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 13 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 13 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Offside front brake binding |3.7.B.1| | 12 |
| Nearside Rear Leaf spring fractured |2.4.B.1a| | 12 |
| Offside Headlamp not working on main beam |1.7.5a| | 12 |
| Battery insecure |1.9.1| | 12 |
| Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 12 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 12 |
| Brake hose excessively deteriorated | 12 |
| Rear parking brake recording little or no effort | 11 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Offside Rear Shock absorbers has a serious fluid leak | 11 |
| Brake load sensing valve seized |3.6.E.3| | 11 |
| Offside Rear Stop lamp not working |1.2.1b| | 11 |
| Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b| | 10 |
| Nearside front brake binding |3.7.B.1| | 10 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 10 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 10 |
| Offside Front Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 9 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 9 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 9 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 9 |
| Nearside Rear Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 9 |
| Front brake disc in such a condition that it is seriously weakened | 9 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 9 |
| Nearside Rear Shock absorbers has a serious fluid leak | 9 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 9 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 9 |
| Nearside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i)) | 8 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 8 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 8 |
| Exhaust emissions exceed manufacturer`s specified limit |8.2.2.2 |a|| | 8 |
| Nearside Front Shock absorbers has a serious fluid leak | 8 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 8 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 8 |
| Horn not working |1.6.2a| | 7 |
| Nearside Front Lower Shock absorbers has an excessively worn bush (5.3.2 (c)) | 7 |
| Offside Rear Rear fog lamp not working |4.5.1 |a| |ii|| | 7 |
| Rear fog lamp not working |4.5.1 |a| |ii|| | 7 |
| Nearside Front Shock absorbers has an excessively worn bush (5.3.2 (c)) | 7 |
| Parking brake lever has no reserve travel |3.1.6b| | 7 |
| Brake performance not tested (1.2.1 (g)) | 7 |
| Offside Rear Leaf spring fractured (5.3.1 (b) (i)) | 7 |
| Windscreen wiper blade insecure | 7 |
| Rear brake application uneven | 7 |
| Trailer electrical socket insecure |1.9.3a| | 7 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 7 |
| Mechanical brake component has restricted free movement | 7 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 7 |
| Nearside Headlamp not working on main beam |1.7.5a| | 6 |
| Nearside Front Drag link end ball joint has excessive play (2.1.3 (b) (i)) | 6 |
| Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g|| | 6 |
| Brake load sensing valve seized and ABS not fitted or inoperative (1.1.17 (c) (ii)) | 6 |
| Front brake application uneven | 6 |
| Nearside Rear Leaf spring fractured (5.3.1 (b) (i)) | 6 |
| Offside Front wheel bearing rough when rotated |2.5.A.2| | 6 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 6 |
| Offside Front Service brake excessively binding |1.2.1 |f|| | 6 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 6 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 6 |