How to replace windshield wiper blades on an Audi 80?

I recently noticed that my windshield wiper blades on my Audi 80 are not working as efficiently as they used to. I want to replace them myself, but I'm not sure how to go about it. Can someone provide step-by-step instructions on how to do it properly?

First, you will need to lift the wipers from the windshield and remove the old blades. Next, consult your car's manual to determine the correct size for replacement blades. Once you have the correct size, fit the new blades onto the wiper arms, making sure they are secure. Finally, gently lower the wipers back onto the windshield for a test run.