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Thread: Battery drain

  1. #1
    Join Date
    Jan 2019
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    330ci

    Battery drain

    I have a blinking light under the rear view mirror. I don’t think I have an alarm system. How can I tell ? Can this light be draining the battery? Should I look to something else?I have an 05 330ci.
    Last edited by Libertycall1; 01-20-2019 at 08:01 PM. Reason: I have an 05 330ci

  2. #2
    MauiM3Mania's Avatar
    MauiM3Mania is offline Observer/Master Skeptic Moderator
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    It indicates that the anti-theft system is operational. There's no significant battery drain to be concerned about.
    04M3 TiAg 69k slick-top 3 pedal
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  3. #3
    Join Date
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    Arlington, VA
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    2018 BMW M240i
    That blinking light is called the clown nose. Does it blink all the time, or does it blink after you’ve locked the car?

  4. #4
    Join Date
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    2001 525it
    So the battery is going dead? If the car has an automatic trans, when you shut off the car the "p" light, parking light on the center console will still be on even though the car is shit off, if after about 20mins the light is still on and never goes off you would have something keeping the car awake and it could drain the battery. Certainly this would not solve your problem, but it is an easy test to run.

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