88' 300 SE. Rear door will not unlatch. I've hit the lock mechanism it with penetrating oil from about everywhere I can find that might help. Watched Ken's video on the subject. Tried everything he suggests. Still stuck.

So as far as I know, I'm down to trying to get the panel off with the door closed. I have no illusion this will be pretty.

Anyone ever done this before? Thoughts or ideas?

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1988 300SE 83K+
1991 350SDL 283K+