| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 333 |
| Windscreen wiper does not clear the windscreen effectively | 282 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 153 |
| Registration plate lamp issues | 29 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 23 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 21 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 13 |
| Registration plate issues | 13 |
| Anti-lock braking system warning lamp indicates an ABS fault | 11 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 10 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 10 |
| Windscreen washer not working | 9 |
| Brake pipe excessively corroded | 8 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 8 |
| Offside Rear Shock absorbers has a serious fluid leak | 7 |
| Brakes imbalanced across an axle | 7 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 6 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 6 |
| All outline marker lamps not working (4.2.1 (a) (ii)) | 6 |
| Trailer electrical socket (13 pin) not operating the trailer lamps as intended (4.10 (c) (i)) | 6 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Parking brake lever has excessive movement indicating incorrect adjustment |1.1.6 |c|| | 5 |
| Nearside Rear Shock absorbers has a serious fluid leak | 5 |
| Parking brake: efficiency below requirements |3.7.B.7| | 5 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 5 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 5 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 5 |
| Offside Rear Rear fog lamp not working (4.5.1 (a) (ii)) | 5 |
| Nearside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 4 |
| Nearside Rear Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 3 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 3 |
| Anti-lock braking system warning lamp does not illuminate (1.6 (a)) | 3 |
| Nearside Front Outline marker lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Drivers airbag obviously inoperative (7.1.5 (c)) | 3 |
| Offside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii)) | 3 |
| Oil leaking excessively from engine (8.4.1 (a) (i)) | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 3 |
| Offside Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 3 |
| Offside Rear Outline marker lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Rear Upper Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 3 |