How do you change bulb in c-270 Mercedes wing mirror?

To change the bulb in a Mercedes C-270 wing mirror, first, carefully remove the mirror cover by prying it off with a flat tool. Once the cover is removed, you’ll access the bulb holder; twist it counterclockwise to release it. Replace the old bulb with a new one (ensure it’s the correct type), then reinsert the bulb holder and snap the mirror cover back into place. Finally, test the new bulb to ensure it works properly.