Mercedes Benz 2006 E-350 does not start at all

did you ever fix this problem by any chance ?

Finally after 18months of car being dead the mystery is solved. I had been trickle charging the battery and everytime it would be Green on the charger that battery is charged. The problem is that the trickle charger cannot distinguish being 0 charge and Full charge. When battery was dead it would not take in any trickle charge. With no current flowing the trickle charger would think battery is fully charged and shutdown. So essentially battery neve charged and all systems in car slowly had shutdown (including the shockers of the car and body of car had become so low that it was almost touching the tires). Finally called RepairSmith mobile service to check all wirings. First thing they did was jump start the car. Behold the car started, car body slowly rose from the low point and after me driving for 30min battery continued to keep charge. I was almost ready to junk it. It is amazing how Mercedes systems worked even after car was dead for 18 months. I love this car and missed it for 18 months.