where in the world is the battery in the G.... i know it says its under the cupholders but how do you get to it? how do you just jump start the damn car....?

 

Remove the cupholders.

The entire floor panel behind the center console lifts up and the battery is right beneath. You lift the panel from the portion just in front of the rear seat.

The panel may or may not be removed with the cupholder in place. I removed my cupholders a long time ago so I can't remember.

 

You can jump start the car from the engine bay.
There is a "positive" post under a cover on the drivers side.


Page 355 shows you how...owners manual tell it all:

http://www.mbusa.com/vcm/MB/DigitalA...500_g55amg.pdf