Hi, we have a simple solution. The Replacement Key for Yakima Racks and Carriers, part # Y8873-049. Once you have that key you should be able to remove the rack from the roof of your vehicle. view full answer...
The only hitch that we have confirmed to fit the 1981 Mercedes 300TD Wagon is # C11805. The trailer hitch comes with the recommended ball mount, pin, and clip, and you can use ball # 19256 (1-7/8 inch diameter) or # 19258 (2 inch diameter). For trailer wiring, you would need Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector # C59236. I have included a link to the installation details for reference. view full answer...
If you're referring to the small retention clips that I have pictured below then we do carry them, but only as a package with the roller assembly under part # GMNR925. view full answer...