This is my first post here and I've had the pleasure of owning an e28 M535i for about 3 months now. I'm slowly building up and going through a list of bits that need doing. Most are straight forward but there's a pipe behind the grill that I can't find on any parts diagrams, forum posts, or mentions on google relating to it. I've attached a picture of it; it's rusted to bits and needs replacing but I'm not sure what it's purpose is or what part it is. The hoses lead off to the bottom of the engine/gearbox but admittedly haven't looked under the car since finding this.
My questions are: What is the part? And can I remove the loop completely and install a small pipe with a U bend?