I don't have the particular wiring diagram for you car, so you'll need to do a bit of checking, but you do have a coolant sensor that's connected, either directly, or indirectly through another component (i.e.: over-voltage relay, etc..) to your EDS system. That's the wiring that I am referring to.

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'95 E300 Diesel, 264,000 Miles. [Sold it]