Ongoing Battery Issues Please Help

Mar 27, 2022 | 02:07 PM

Bmax28

Thread Starter

Newbie

Joined: Jan 2022

Posts: 13

Likes: 3

From: Denver CO

2003 E55 AMG

Ongoing Battery Issues Please Help

Alright so I have a laundry list of things that have been replaced some by me and some by old owner. I got the car with 78k on it and have had battery problems ever since. I will wake up and get in the car in the morning and the red battery light comes on and I have no convenience features. After I drive 10 min and shut the car off for fuel or groceries, all functions are restored and I'm good for the day no matter how many times I shut the car down. If it sits for more than 6 hours ish? The warning comes back. If I drive the car with the warning for 45 mins though I will still not have any convenience functions the entire time.

I have combed through all the battery sections of all the forums (I think) and I dont know what to replace next if anything. Im sure I missed something but I dont know where. Below is what has been replaced. Any help appreciated. I'm not new to forums but I am new to posting in one so be gentle

.New interstate rear battery 67k (3 years ago)

New alternator 68k

Replaced auxiliary battery relay and fuse 68k

Replaced battery control module 68k

New alternator and regulator 70k

New interstate rear battery 76k (1 year ago)

New alternator regulator 80k

New interstate front battery 81k (yesterday)

Battery codes cleared and BCM reset 81k

Rear Interstate battery tested passed with flying colors 81k (yesterday)

Reply Subscribe