What's up guys, I have a little problem is was trying to flush out my radiator or old engine coolant and in the process I broke the drain plug ( plastic is too brittle). Now I cant turn the plug so I can make the coolant drain. I was thinking to remove the whole radiator and then try to saw it off, melt it off, or drill into it. What do you think ? I have pictures if you guys want to see.

 

Once you get the radiator out you can look more carefully at the plug. Then use the same methods as for removing broken bolts.

You might be able to use a soldering iron or a heated blade to carefully melt a slot in the plug head for a flat blade screwdriver.

A bigger concern may be finding a replacement plug. I suggest you work this issue first.