So I recently purchased a 2000 a4, and I had some questions. hopefully you can help me out. I just want to get an idea to fix these asap.

is that hose on the bottom right supposed to connect to that plastic piece there in the middle?



what is that part that is full of oil?



what is the piece called that goes under the bumper to make it lower? i think it broke off because the whole car has a spoiler kit but the front.