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Greetings everyone,

Seeking guidance.

A 2018 c220d automatic is what I'm using. I had to use a jump starter yesterday because the dashboard displayed the "Start Enginer - See owners manual" warning.

The same warning about the dead battery and inability to start the car came up again today.

Please tell me if my assumption that a 115 AGM battery is required is incorrect.

Does it require any programming if I were to replace it on my own?

I was hoping you could suggest a few brands.

Very Much Appreciated

Asked for assistance with the question up there. Thanks a bunch.

Make sure the alternator is delivering 14V or slightly more the next time you use a multimeter to jump start it. The alternator will be guarantyd to be in good working order after that.

You have accomplished a lot if you are using the original battery from 2018.

I appreciate it. The alternator is indeed sending 14v+.

The battery is dead; how do I change it? additionally, is BMS programming mandated?

The Tayna S5A11 Bosch AGM Car Battery, 12V 80Ah Type115, is what I intend to purchase.