The video makes it look harder than it actually is as his tailgate is stuck closed, the inner trim is far easier to remove with the tailgate open. Regardless of that it shows you how it operates.

At £35 it's the cheapest DIY option to rule it out. As the catch goes onto its first position the cable, in the 2nd unit, pulls the tailgate onto the second position of the catch. Of course it could be an electrical issue but that will be harder...

Thx for your reply. I will give it a go. Will ask my local LR specialist to fit it. They are pretty reasonably priced as neither myself or hubby are not confident enough to replace. May I ask why you think the issue is the boot catch. It's odd...

New here! I've got an L405 and the auto upper tailgate is not clicking shut. It closes ok but wont click shut hence I can't lock the car. Replaced both batteries in car and had them programmed to car. Issue was there before batteries were...