This car sat for 15 years. It has 112K on the od. no rust. Body a little rough' interior seats good, dash all cracked up. I looked at the car 200 miles from home. The guy said he got it running and drove it. Transmission shifted ok.
It was snowing when I looked at it. So I didn't hear it run. Took the guys word.
I paid for it and went after it 6 weeks later because of the bad weather. I
These are hard to find with low mileage and when one is found They are like gold.

Anyhow I got the car home and it was hard to start. Had to glow it several times. Bad fuel maybe. Drove it 2 miles and it pegged the temp gauge. Wow!! removed the thermostat and it opened at 180*. Reinstalled the thermostat. Started it and ran at fast idle for several minutes. Temp didn't go past warm. Removed the coolant cap and bubbles came out. Opened the throttle wide open for a second and coolant gush out like a geyser.
Next I will run a compression test to see what else?
I suspect that the guy shot ether to it while the glow plugs were lit up and blew the HG. Oh well I knew better. But I really don't think the guy knew!
I believe that I will be ok in the end. Maybe $2000 invested in a low mileage 190D.
Sorry for the long post, but that is what happened.

Tom