I was poking around the underneath of my 83 300D this morning and lo-n-behold found a very well hidden block heater plug! Well now, last winter, my first as a diesel owner, was not fun what with trying to rig up lamps for heat, crossing my fingers in the morning, and even worse, having to use my rice-burner! So needless to say, I'm happy with this find. Prior to 10 below, is there some simple method to see if this thing is pulling some current? Would a continuity test at the plug end give me some indication as to the state of the heater element itself? How much should this pull amps-wise? I'm really surprised finding this, I guess I was looking in all the wrong places last year. I had the car out front being sold since I wasn't up to another winter fight. Maybe I'll keep it for another year now.