I recommend CVJ Axles in Denver. http://www.cvjreman.com/index.php
Their axles are about $140 each plus a $50 refundable core charge plus shipping and come with a three year warranty. Mine were installed (by me) in July and now have a little over 7000 miles on them and no complaints.

I doubt that anyone other than a Mercedes dealer sells factory new axles. There is a (German?) manufacturer, GKN Automotive, with a new axle (Phil has them -- just under $400 each). Factory axles are about $900 each, last I heard.

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970