Thanks for info.

I used to change battery on my previous BMWs, easy DIY. I wonder if there is any special precaustions for E70 since it's got way more electronics than all my previous BMWs?

Also, does anyone know the spec of our battery? Can the charge system work well with more powerful battery? Or does it even matter?

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2011 X3 35i
2008 X5 4.8i
2003 330xi -sold-
2001 X5 4.4i -sold-
2001 M5 -sold-
2001 M Roadster (SCed, Highly modified) -sold-
2000 M Roadster -sold-
1995 325is -sold-