What should be an easy DIY job has been giving me problems.

I have no trouble removing any screws that mount the headlights to the frame, but I cannot unplug the 4 prong connector on the back of the light. I've spent about 2 hours attempting to disconnect it, and it wont even budge.

The car is a 1990 300e, and it has survived 20 Chicago winters. I'm thinking this may be the issue, or I'm just missing something insanely obvious.

The end goal is to swap out the old US dot headlights with some DEPO euro lights. I've read about every thread I could find before and after purchasing the lights and I cant find anyone with the same issue as me. I'm considering just pulling the pins out of the back, and putting them into the 6 prong case needed for the DEPO lights. What would be the tool of choice to do that?

Please tell me I'm doing something wrong. Or, if you have any suggestions on how to disconnect the plug, I'm willing to try.


Thanks in advance!