Battery Replacement

[3Series]

Originally Posted by Lawfarm

My understanding is that no, not all E70s have AGMs. I was advised by the dealer (and confirmed through some research) that early 09 and prior E70s did not have an AGM...but the replacement is a higher-capacity AGM. Replacing the original battery with an AGM requires a reprogram, to adjust alternator charge settings.

That's good to know. When I replace my battery, I'm going to replace it with a non-AGM since that's what I probably have, 2007. My understanding is that a white case will indicate AGM and a black non-AGM. Of course, I'll look at the label to confirm.

It's 3 degrees here and my garage is probably 20 degrees warmer so I haven't been inclined to open the boot and look at the battery.