at this site you site a method referred to as a jump start terminal located inside the engine bay.  each of the examples displayed shows a red + indicator however, on my 2000 Mercedes s500 no such display exists...question can you please provide a picture or instructions on where this unit is located on my vehicle.  briefly I had the trunk opened disconnected the negative post on the battery and the inadvertently closed the trunk.  I did attempt to jump start from area on floor it did not work (most likely because negative post disconnected).  I have removed rear seat and removed and reinserted both fuses in yellow junction unit while husband pulled trunk lever   did not work ...I have tried to open manually for some reason the key turns, the lock button pushes but the trunk did not open