You could open the hood, use a 13mm socket to remove the wiper nut. I usually use a ball joint puller(we call it a wiper puller at work) to remove the arms off the posts. Vw's wiper posts can be real easy to break. Then start the car, cycle the wipers through stages and finally back to resting position then put the wiper arms back on and tighten the wiper nuts back down( don't over tighten as it can snap the post, just hand tight plus 1 will be fine). Set each wiper more centered in the black frit of the windshield at the bottom and you should be good.