Is this a new tensioner or a used one on an existing belt?
If it's a used one and you're not changing the belt or you're reusing the parts for some reason and there's plenty of life left on the components, loosen it all the way counterclockwise, set everything, and set it clockwise to the pointer.
It's pretty much the same if new. Here are pics and the rest of the procedure, there are videos in part 2. http://www.myturbodiesel.com/1000q/a5/brm-VW-Jetta-TDI-timing-belt-replacement-1.htm
welcometomyturbodies
If it's a used one and you're not changing the belt or you're reusing the parts for some reason and there's plenty of life left on the components, loosen it all the way counterclockwise, set everything, and set it clockwise to the pointer.
It's pretty much the same if new. Here are pics and the rest of the procedure, there are videos in part 2. http://www.myturbodiesel.com/1000q/a5/brm-VW-Jetta-TDI-timing-belt-replacement-1.htm
welcometomyturbodies
