For the later (86-93?) 240s with the giant rectangular headlights. Left is repaired w/ tape, but useable. Hate to throw them out if someone can use them!

You didn't say if it was front or rear. The left and right lamps are operated by seperated fuses, but those fuses control other things (tail lights, instrument panel lights and others), so you would notice those things. Probably the socket for the bulb. Check a junk yard for a replacement.

I have an '87 240 DL wagon that has been running cold for several weeks. The gauge will climb to normal, and then drop fairly suddenly. Then it climbs slowly back to the middle. It does this especcially when climbing hills, or starting up from an idle. I changed the thermostat over Thanksgiving week...