help, J519 module? Fuse? Water in floor? everything is quitting
 

My daughter has a 2005 Audi A4. She Left the windows down in a rain storm, and the car got pretty wet inside. Ever since, the wipers don't work right, car won't start if heater is on, and the window won't go up or down on the drivers side. Someone told her it is probably a J519 module, or maybe water is under the floor in a fuse or something. We are at a loss, and can't afford to have the guy at the shop search for the problem at $95 an hour. Anyone had these problems?