Mercedes Benz repair: 2002 Mercedes Benz s430, mercedes benz s430, amp fuse

Question
my car would not start so, I brought a new battery it start the next day the car wouldn't start. I brought a new alternate and my car start the next two days I had to get a jump, and it start. every time I get a jump it will start. but something is killing the battery. I don't know can you help me.

Answer
open the fuse box and check each fuse with a multimeter tio see where the trickle loss is it will probably be a bigger amp fuse that is continuing to be on like a 25amp just go around and touch wach end youll find which one is draining and then you can go from there to fix your problem