How do you release belt tension on vw polo 2001?

To release belt tension on a 2001 VW Polo, locate the tensioner pulley, which typically has a square socket for a ratchet or a wrench. Insert the tool into the socket and rotate the tensioner counterclockwise to relieve tension on the serpentine belt. Once the tension is released, you can remove the belt from the pulleys. Be sure to check the belt routing diagram, usually found in the engine bay, to ensure proper installation when you replace it.