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2007 BMW 550i Question: gearbox



MikeBmw550, Darien, IL, November 05, 2010, 14:28

BMW 550 2007 62000miles. transmission can't choose the gear between first and second when i try smooth start. it's either like a senior driver or super sports- imposible to start moving in mid range rpm's

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  • Answer #1

    November 05, 2010, 16:05

    Read this and see it it applies to your car. If it does, it needs a software update.

    The customer may complain about one or a combination of the following situations, listed below:

    1. Intermittent harsh 4-3, 3-2 or 2-1 downshift (jolt) when coming to a stop with light brake application.

    2. Jolts and/or jerks felt when reaccelerating after coasting.

    3. Judder when gently accelerating (most noticeable at an engine speed below 2,000 RPM).

    DME and EGS software calibration

    Program the vehicle with ISTA/P 2.33.0 or later, using the path "Conversion" and "Downshift behavior". After this modification, the k-word "HADS" will be added to the Vehicle Order.

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    Visitor, December 16, 2010, 02:36

    is the judder likely to be more when it is cold outside and engine/transmission are cold?
    Also is it ok to share this note with the service advisor or just tell them the symptoms?
    Final question, i just had satellite radio installed and they did a full reprogram. Does the software patch you mentioned get applied automatically as part of latest update or is it only installed on cars where there is a reported issue?
    Thanks in advance for your response

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    ZeeTech, December 16, 2010, 13:37

    It really depends if they just coded the MOST network, which handles the navigation, telephone, stereo, CD, etc... to control the sat. radio, or if they did a full system software update. A full update - based on how far is it behind- could take many hours.
    Of course you can show this note to the service advisor.
    I hope they can help you to get rid of this problem.


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