Door-Mounted Cup-Holder Hinge Base

Direct replacement for the hidden hinge base inside the leather-covered door-mounted cup holder, developed on a 300E from the 1984-1996 period. Source photographs show the physical base and cup-holder assembly. Match the door and holder variant, reuse the original covering and backing carefully, use tough cabin-heat-resistant material, and verify full folding travel, secure retention and unobstructed door operation.