here is my complicated problem.I ran almost all of the gas out of my 98 c230 i did not drive or start the car for 6 months after i filled the tank up with gas.when i attemted to start the car at the gas station i would not start or turn over.i had it towed back to my house and left it as is for anothr 6 months.now my battery is dead and i cant get into the trunk? what should i do.I still dont know why the car stopped running