OK, I've had a development since my original post. I found the part no. on my original part and it is 1244402933; the one that was sent to me was 1244405632. So as several of you mentioned, the Mercedes computer is simply wrong as to some of these 95 e320 wiring harnesses - we entered the entire VIN and it came up with the wrong part; so you can avoid a mess such as mine buy (1) letting the installer get the part (so at least if it's wrong its his or her problem), or (2) if you are providing your own part (and there is a healthy discussion above concerning this option) checking the part no. of your original - it does seem very hard to go wrong if you have that part no. first.

So I guess here's my question now: isn't that 2933 a replacement part? I'm now thinking this harness has been replaced (and now questioning my mechanic on the need for a replacement)... I checked a lot of the harness in looking for that part number and the only frayed part I found was one place where it connected on top of the engine (near that plastic shield on the front). I am thinking: return the wrong part, wrap some electrical tape on the frayed area, put my $1000 back in my pocket and drive on? Thoughts... ! (I know it's hard to say without seeing it).