You need to get one from the same year with the same lights (LED, HiD etc). It also stores a backup of the mileage and I've heard the instrument cluster will take the higher mileage after a while unless you reprogram it fairly soon.
The leak or leaks maybe, are being addressed. Can you see the LCM in either of the photos? The image I have of an LCM for this model doesn't seem to correspond to what I see once I removed the trim.
First thing you need to do is fix the leak.
Second is look for the part number on that module then google it to see what it is. But it does look like the LCM.
2005 Td6. Symptoms/issues:
Rapidly blinking headlights, tail lights & brake lights
Indicators not working
Handbrake/brake warning light on
Local Land Rover garage suggested I do a hard reset.
Result no flashing lights, but left side...