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Thread: 2008 328i xdrive "onboard info" numbers are wrong!

  1. #1
    Join Date
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    2008 BMW 328i xdrive

    2008 328i xdrive "onboard info" numbers are wrong!

    Hello everyone! Hope everyone is having a good day!

    I have a 2008 BMW 328i xdrive.
    I've had the car for about 6 months now and this has always been a problem.
    My Onboard info numbers are not accurate, the reason i know this is because the Miles to empty number goes say from 55 miles left to all of sudden 49 miles after i have only driven a mile or 2. just no consistency. Also something else im experiencing is the clock is normally wrong, every time i turn the car on, its a couple more minutes behind. The last problem i have as well is sometimes such as 3 or 4 times in a 3 week span saying "increased battery discharge". I've replaced the battery about 3 months after i bought the car. When i first bought the car i had it inspected and the guy said i would need a new IBS sensor. I have yet to change the IBS sensor so not sure if this is the cause of my problems or not but please help!!!

    thank you so much!
    -Austin

  2. #2
    Pelican Parts's Avatar
    Pelican Parts is offline Senior Member Supporting Vendor
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    Aug 2013
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    Harbor City, CA
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    '02 E39 Touring
    Welcome to the forum Austin! The IBS sensor needing replacing may have something to do with the 'increased battery discharge' warning; so I would definitely address that. As far as the mileage setting, I don't think that you're having any inconsistencies there. It really has to do with your driving style and the computer catching up and figuring out the mileage. A 4 mile jump isn't serious at all - if you had an alert that you have 55 miles remaining and within a moment it jumps to 30 or so; then I would look into it as an issue - I think you're okay there. Perhaps get the codes read on the car and see if anything out of the ordinary shows up. Best of luck!

    -Dmitry
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