racerx216

I must be overlooking, but where can I find the manufacture date / in-service date on an original equipment MB battery in my C300?

holger

I too would be curious if you get an answer to this question. I just had the battery in my 2014 C300 replaced by the dealer, and there is no sticker on it with the manufacture date. There is a spot where it looks like they might have peeled it off. Every car battery I've ever purchased/installed has a small round sticker with the date of manufacture on it.

xEryx

I replaced mine too yesterday. There was a gray circle sticker on the top that said 12/17, my old one didn't have it and it died in 2.5 years.

edgalang

This is why you don't rely on a sticker, but TEST the CCA of the battery instead. I personally check whenever I do an oil change and replaced my original when it dropped to 560 (original was 800). The reason why I do CCA values is that it's possible to get a higher rated battery than the original. My replacement AGM battery was rated at 850, but tested around 880 when new.