How do you replace brake bulb on 2004 V W passat?

To replace the brake bulb on a 2004 VW Passat, first, open the trunk and locate the access panel on the trunk lining near the tail light assembly. Remove the panel by unscrewing or unclipping it, then disconnect the electrical connector from the tail light. Twist the bulb socket counterclockwise to remove it, replace the old bulb with a new one, reinsert the socket, reconnect the electrical connector, and finally, replace the access panel. Test the brake lights to ensure the new bulb is working properly.