Here are some pictures of the lights you are looking for:
I don't know if the lenses will fit your Euro Assemblies.
Mercedes Benz OEM Part Numbers for the Hella Lenses are:
000 820 12 66 - 1992-1993 Hella Euro lens, 500E Price:EUR 85.26
000 820 13 66 - 1992-1993 Hella Euro lens, 500E Price:EUR 85.26
Mercedes Benz OEM Part Numbers for the Hella Assemblies:
124 820 43 59 - 1992-1993 Hella Euro lights, 500E Price:EUR 246.50
124 820 44 59 - 1992-1993 Hella Euro lights, 500E Price:EUR 246.50
HELLA Part Numbers for the Assemblies:
1EJ 004 440 371 - 1992-1993 Hella Euro lights
1EJ 004 440 381 - 1992-1993 Hella Euro lights
***I'm not 100% sure about the accuracy of this info. At least you will have something to start with.