How do you change wiper arm on Renault laguna?

To change the wiper arm on a Renault Laguna, first, lift the wiper arm away from the windshield. Use a flathead screwdriver to gently pry off the plastic cover at the base of the arm, if applicable. Next, locate the retaining nut and use a socket wrench to remove it. Finally, replace the old wiper arm with the new one, secure it with the nut, and reattach any covers.