E39 Re-initializing Keys to Operate Alarm


Thread: E39 Re-initializing Keys to Operate Alarm

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  1. E39 Re-initializing Keys to Operate Alarm 
    BMW Crazed
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    stolfordtone's Car Details
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    Z4 3.0i SMG/523i
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    Reading the last thread reminded me of a problem I have had a couple of times.
    (This may apply to cars other than the E39)

    Apparently, strong radio signals near your car (maybe police/ambulance etc.) can mess up the programming of the remote key operation. When this happens, the car will not recognize the key and you cannot disarm the alarm

    This has happened to me twice and once to my brother last week. It's no fun driving through London with the alarm on and all your lights flashing

    Anyway, to avoid this situation, I wrote and keep the following method in my glovebox: -

    Instructions for Initializing Keys
    (When key will not disarm the alarm)

    To be carried out inside the car with doors closed:

    1 Switch ignition to position 1 for three seconds, then off again.

    2 Remove key, then holding the unlock button, press the ‘lock’ button 3 times.

    3 Release the ‘unlock’ button. Central locking will lock then unlock. Key is now ready to use.

    4 Repeat stage 2 & 3 with other key. Keys must be re-initialized at the same time.

    I hope this might save others a whole load of hassle !
    BFUK Nightshift Crew member

    E39 523i Touring, full leather, 17" BBS split rims, clear indicators.
    E85 3.0i Z4 SMG, Powerflex bushes, 18" BBS 5-spoked alloys, drilled and slotted discs all round with yellow calipers.

  2. The Following 3 Users Say Thank You to stolfordtone For This Useful Post:

    mikesmith2 (04-10-2009),Ronnie (03-10-2009),steve23002 (02-10-2009)

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    Ronnie's Car Details
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    See above
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    Never too old, never too new
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    Always manual
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    Usually 5 doors
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    Dec 2007
    Bournemouth, Dorset.
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    Great info stolfordtone and will come in handy for the members

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