Volvo Repair: Removal of windshield wiper arms, windshield wiper arms, windshields

Question
How do you remove the windshields wipers arms on a 2004 s-80. The problem I have there is air coming inside the car on the drivers side under the windshield. The dealer told me to remove the cover on the firewall to get a better look.  But I need to remove the wiper arms.  Thank You

Answer
   Where the bottom of the arms meet the glass, and where they hinge, (lift up section) Pull the small black plastic cover straight up. You sould see a post with a nut on it. Remove the nut and carefully pry the end off. Do it with the arm in the upright (not touching the windshield position.

Mark