Quote:
Originally Posted by richardb
Might have answered my own question here. Google:
"OEM BMW batteries have a date code stamped on top of the negative terminal in XX/XX (week/year) format. eg: 25/02 = 25th week of 2002. In addition, the 'age' doesn't matter so much as the current capacity.Jul 16, 2011" -Bimmerfest via Google
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My 2 cents…
The computer in my 2012 X5 shows, “Original Battery.” There has never been a replacement registered. I will have to look for the date code, did not stand out to me last time I was in there to look.
I am the 2nd owner. Only ever dealer serviced since new, exceptionally maintained. I had the transfer case fluid changed at an Indy, but that is it.
A little nervous about it, but no signs if giving up. Even after occasionally sitting for week or two at a time. Daily driver when I am in town. New battery soon, to be safe.
BMW OEM battery, expensive but worth it.