The head light washers don't work. I know that they only work when the headlights are turned on and that is how I tested them. I know the front bumper was replaced before I bought the car, is it possible that they didn't hook them back up? Do all S4's come with headlight washers, more importantly do all Audi's come with the headlight washers? Since those little square caps are on the bumper i assume they do.