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How do you reset the computer in an old 2007 x3i?

Simon Gray
in BMW 3 Series Forum

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The battery went down recently a couple of times on our  2007 X3i. It's recharged now but apparently the computer shut down and the ignition and steering column is locked. We were told the computer needed to be reset.  I don't want to take it to the dealer as the cost is just too much for this old girl.  Can any club member recommend how we reset the computer please?

 

Many thanks

 

Simon

  • Quote

    Morning Simon

    Welcome to the Forum

    I think you may have posted in the wrong spot, if I am reading your post correctly it says X3 not 3 series

    However BMW like to place the battery in the boot under the floor, if they are charged or jump started directly at the battery damage can be caused to the electrical system. The car should be charged at the posts under the bonnet or jump started there as well. I hope that is the case with your X3 and that it hasn't been jump started at the battery.

    Normally disconnecting the battery negative post first then live (some people touch the 2 terminals together to discharge any static) and leaving it for 30 mins then reconnecting 30 mins is important as the car takes a while to self test and shut down systems. Reconnect Live first then Negative this should reset everything. If not then you will need more help as your car has several computers that need to see/communicate with each other. May be a member near you who has a Diagnostic program like Inpa/Insta or PA Soft 1.4.0 or a reader capable of fault reading a BMW can help? 

    Fingers crossed it is simple 

    Dave

  • Quote
    • Like 1
    • Author

    Many thanks Dave. I will give it a go! Simon

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