[Tom K.]

Originally Posted by EnycRonald

I also need to replace my battery but i cant decide wether to register it or not. according to this post we dont need to register it, http://www.justanswer.com/bmw/4qd9b-...2007-335i.html.

And Mike Miller of Roundel, as well as BMWNA, say registration is necessary. The reason is that the device which actually controls the rate of charge (the IBS), has to be informed of the new battery - it doesn't "learn on it's own over time.

Tom