I have found on my TD6 a small filter on the right of engine by the main fuel filter it has only one pipe fitted is this right ???
als found two electrical connectors hanging both 2 wire first brown wire and brown black second brown and green red anyone any ideas

The filter is a breather and only has one pipe fitted, just make sure it looks reasonably clean. There will be numerous wired plugs around the vehicle that are not connected to anything, LR possibly used a generic harness on all vehicles to cut costs.