You gotta see this U-Tube video. How to change a VW fan belt in less than five minutes. To remove the old belt, the mechanic sticks a screw driver under the belt at just the right spot with the engine running. Viola. The belt jumps right off. Then he uses the reversed screwdriver handle against the top pulley to make it stop spinning, Next he balances the new belt on the tip of the screwdrive blade, loops it over the stationary top pulley and uses the screwdriver blade to quickly guide it onto the still-spinning bottom pulley. Sounds crazy but it works. Watch the video. He runs it twice.
By the way, Old Cars Weekly's software for this blog is acting up, so I can only print my entries as text only and I can't paste in hyper links. However, if you copy this address and paste it into your Web browser, it should get you to the VW fan belt video.