93 300te 4matic, parked overnight with doors unlocked, after a few days of heavy rain. I walked out to the car in the morning and found the sunroof and LF window open. When turning the ignition key, the dashlights flashed and clicking noises were heard, but not enough power to turn the engine over. Once jumper cables were connected, the car started easily, and the sunroof closed itself. The LF window remains down, and does not respond to the button in the center console.
Any thoughts how to fix this?