Tonytsai0429
The battery is in the trunk. You will have to remove this weird round looking thing above the batter. I didn't take pictures the last time. It's pretty simple to complete. After disconnecting the battery for 10 minutes or so everything came back to normal. I did not replace the alternator as of yet. I believe my problem is more computer related. My X5 does not fully go to sleep at the end of the night which drains the battery after 24 hours or more.

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Sum Magnus
2006 X5 4.8