Would anyone have the fitting instructions for the Freelander 2 dog guard? I've managed to buy one second hand but no instructions with it. Thanks in advance :)

HI everyone, new to the site. I bought a 07 landrover in Jan this year and since last week have had an ongoing problem with the door locks. Everytime I open the door, the tailgate lock automatically releases but doesnt open fully (if that makes sense?) i then need to press the tailgate lock on...