So I've opened the trunk before on the '83 300D so I know it opens, but I went out to put something in the back and couldn't get it open. The key turns but nothing. I spent 15 minutes messing with it, pushing on it, turning every way I could. I tried again this morning and couldn't open it either. This thing isn't tied to the vacuum is it, as I have vacuum issues. This car is literally like a woman. I swear she breaks something just to keep my attention.

Any ideas?

Yes it has a vacuum lock actuator, but should open with the square headed key anyway.

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Dave
1983 300D Daily Driver

mine's really tricky. key in, counterclockwise till 12'o clock, then clockwise to 2 while pushing in on the key and lifting on the lid

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tgingrich
'83 300TD 282k
'83 300D 239k
'82 300SD 204k
DFW

i'll give it another go when i get home

Yes, thats how its done! Ye gotta press the button while turning the key. And then pull the plastic panel thats off-center towards drivers side next to the clasp mechanism inside and *disconnect* the rod from vacuum solenoid so it never self locks again.

...or just fix your vacuum system so you don't have to mess around with the key.