Here is how to replace the windshield wiper blades on an Audi car. If you have an Audi, watch this video to learn how to do your own windshield wiper replacement. To replace the windshield wipers on an Audi, check to see if you have to open the hood first, then lift up the wiper arm and push the little button on the top of the wiper arm and pull the windshield wiper away from the arm, and it will come off. Then all you need to do is get the correct replacement wiper blades and slide them onto the wiper arm to install them. This video shows you how to replace the wiper blades on an Audi automobile.