I haven't had the displeasure of owning anything newer than the superior Mk5
Video sounds like top end (although you didn't rev it)
If the oil pressure light is going out then the bottom end is ok for now.
Tapping could be rockers or diesel knock (top end)
The newfangled vans have hydraulic lifters?
1 or more could be worn or gummed up.
When was the last oil change and learns on the fuel system?
Any codes stored?