Hey there I just picked up my 2012 Vw gti couple months ago iv been noticing a slight rattle at start up not sure if it’s normal and the tensioner is getting oil pressure so it takes it a few seconds to get there, I did check what kind I have through the inspection hole and it is the updated version I have a video I’ll attach you can kinda hear it for a quick second some times it’s louder tho.
I haven’t gotten one yet I just have a regular scan tool from Walmart it does live data not sure if that can do the trick haha. They say there’s a bother way to take off the upper timing cover and measure the timing marks at top dead center