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Thread: 2000 323i, starts with boost only

  1. #1
    Join Date
    Feb 2018
    Location
    Montreal, Canada
    Posts
    6
    My Cars
    2000 bmw

    2000 323i, starts with boost only

    Hi guys, noob here.

    So we just picked up this 2000 323i, bit of a deal I guess. Guy say battery was dead just because it had been sitting a while. Started very well with a boost, drove just fine the 30 miles or so back home, but that didn't seem to be enough to charge the battery. Snowy day, all electricals were on and doing fine.

    Now, on any other car I look at the battery and alternator, but completely new to bmw and, well, wondering if I should check something else first.

    Thanks.

  2. #2
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    Lead acid batteries don’t like being fully discharged. The chemistry changes and the lead plates get damaged. You need a new battery. Go to Walmart for a new battery.

  3. #3
    Join Date
    Feb 2018
    Location
    Montreal, Canada
    Posts
    6
    My Cars
    2000 bmw
    Yea, that's what I figured. Thanks.

  4. #4
    Join Date
    Mar 2015
    Location
    west chicago il
    Posts
    509
    My Cars
    01 E46 330i 5sp man spor
    Also when a battery is completely discharged, the electrolyte becomes water and then the battery freezes into a block of ice. A frozen battery will not take a charge. If it is new, you can pull it out and let it thaw inside and then charge it and see if it works but freezing damages batteries. You will probably need a new one.

    Sent from my SAMSUNG-SM-G870A using Tapatalk

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