Hi. I just noticed my G37 Vert has matching metal round pieces (driver and passenger side) which are open and contains soft greasy material (See photo part A). The small rectangular pieces on each side marked B apparently move up and contact the “A” part, as each was covered in similar grease. Am I missing some piece, or has something decomposed? I just went thru the fiasco with the roof stuck in trunk from closing it with small bag inside. Never noticed the grease leakers before. Any help greatly appreciated. Thanks. Gary