For those of you talking of getting these wheels, well, we've done it and yes they fit.
BTW, Khari, your 1994 E500 with those SL 2-piece wheels has to be the nicest E500 around....clean, simple, and tasteful....
http://www.mbcoupes.com/500e/1994E500.htm
and mine at:
http://www.mbcoupes.com/560SECSLwheels.htm