OK - based on that VIN, this particular car was delivered as PRE-facelift. Production date was approximately February 1993.
Datacard:
Datacard for 1993 Mercedes-Benz 500 E (124.036) - WDB1240361B931368
www.lastvin.com
Note this car was originally delivered in Germany, before it went to Japan. For European (or, non-USA, non-Japan) chassis the facelift was as of C020765, and also chassis as of B891779 with option code 859. This chassis is B931368 which comes after B891779, but does NOT have code 859... so it was definitely 500E, pre-facelift. A previous owner likely updated to the facelift appearance (best case), or updated toe facelift due to accident damage (worst case).
If you are looking for a car that won't have any questions raised upon resale, stick with examples that have full history & documentation, and no question marks like this one.
On a side note, this car has the basic stereo system (no front door midbass, no dual-tweeter rear speakers)... no roller blind... and may have had other modifications during it's visit to Japan. USA models all had the same equipment (including the top-shelf audio system, roller blind, heated seats, etc). Euro models had all options a la carte, so you need to look carefully if there are any specific options you want. On the flip side, USA/Japan cars did not get the engine oil cooler or the fancy braking system found on facelift Euro E500's.