1999 Mercedes Benz E430

Interior problem
1999 Mercedes Benz E430 V8 Two Wheel Drive Automatic 153933 miles

Out of the blue! My trunk release won't pop the trunk. Also the remote release will not open it as well. I tried to use the emergency key and it wont go all the way inside the keyhole to turn. I checked the fuses and they seem to be good. What should I try next to get the trunk open?
August 15, 2009.

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