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My 520i 2003 drains battery overnight - 525 BMW Cars & Trucks

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  • geraldbrt Oct 30, 2008

    cheked charging rate ok+boot light off. only other thing is faulty intelegent battery sensor,but where is it. have heard if its faulty can cause problem.

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Have you turned off all the lights and accessories in the car? Sometimes the rear pillar lights stay on and its very common to forget about them. Make sure the boot is closed properly as well and that the light is not staying on.(you can check this by accessing the boot from the center arm rest of the rear seat).
Let us know how you get on.

Posted on Oct 30, 2008

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