So I've asked for help in the past about air compressors for 2007 A8, and now I'm trying to repair the original pump. I purchased a repair kit for the pump and in the video he states that if the vein is stuck open it will reduce performance. So mine is bent open and I've been trying to figure out how to remove and bend it back. It seems to be riveted to the piston. I don't want to damage the piston so any help before I reassemble would be appreciated. Even if it's just "install new ring and hope for the best"[img]webkit-fake-url://055d09c9-addf-4ab2-9a45-a9f2564a1bae/imagejpeg[/img]