Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Does it die when you are driving?
Ok, so it dies when sitting and not driving?
Yes, everything you are mentioning is computerized. The Alternator is directly controlled by a computer. It really needs to have a battery draw test performed as something can be staying on while the car is off. If it passes that test then I would suspect the Alternator.
Sorry for the delay, my internet went down. Do you still need more help?