Hi all, I have had my XF sport (2017) for 7 years now. I have had a few minor issues in that time but now my electric tailgate won't close. it started making some clunking and wirring noises after someone tried closing it manaully instead of using the push button for electric closing ( a non driving person). Now after a few weeks of intermittent failure during closing where in it would stop and re-open as if something was preventing closing, it now refused to move from the fully open position. I