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      12-23-2010, 03:57 PM   #18
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Drives: '06 E90 330i 6MT TiAg
Join Date: Dec 2009
Location: Sacramento, CA

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Originally Posted by JPSlick View Post
I mean a battery is a battery is it not?

12 volt battery, similar cold cranking amps?

I still dont get how this happened?

Like physically what happens when you dont get a OEM BMW battery and have it "coded".

Excuse my ignorance but I think all of us still have this question.

Just trying to figure out what the registering/coding does.
Thats what I thought too. My guess is as good as yours. I do recall the mechanic saying that unlike the e36's and e46's, the e9x's are equipped with what is called a "smart pack" which is a plastic box with a bunch of wires in it that attaches to the battery. This is what primarily failed. Anyone familiar with this part?

Last edited by Suckr4Straight6s; 12-23-2010 at 04:04 PM.