2001 e46 320d: charging keys, induction charging.

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  1. 2001 e46 320d: charging keys, induction charging.†
    #1
    Bimmer Fan
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    Benyon's Car Details
    Model of Car:
    320D SE
    Year of Manufacture:
    2001
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    Manuel
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    I understand the basic principles of the induction ring in the ignition barrel and how that charges the key, but I suspect my induction ring may have failed. To be sure the keys still charge and they are not at fault can I charge them up any other way, ie if I put them next to my toothbrush charger?

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  3. #2
    Bimmer Fan
    Car Details
    Benyon's Car Details
    Model of Car:
    320D SE
    Year of Manufacture:
    2001
    Transmission Type:
    Manuel
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    Touring

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    Just found this on a Mini forum:

    Resurrecting a R53 Cooper S Remote Key Fob
    Had my 2005 MCS JCW for a whole 7 days now and loving it . But one of the remote keys was completely dead!

    Tried re-programming as per the instructions on the forum and driving around all week with it in the ignition hoping it would charge but nothing seemed to work!

    Last night decided I would have to get a replacement or break it open to replace the battery.

    As a last resort I thought I would read up on induction charging as this is how the battery is meant to recharge whilst the key is in the ignition. My thoughts were that it could not get enough time to charge the battery if it was completely drained (common when the keys arenít used for long periods). So I needed to find a way to boost the charge for an extended period of time.

    So last night I left my key fob lying on top of my electric toothbrush induction charger in the hope that it would charge the key.

    HEY PRESTO! This morning I followed the re-programming instruction below and it worked (also re-programmed the working one to make sure they both worked!).

    So if you are having trouble with charging your key it might be worth trying to charge it with your electric toothbrush induction charger!

    I found these instruction for programming the keys via a search on this forum and can confirm that they worked for me;

    1. Have all the keys on you when you get into the car.
    2. Get in and shut the doors (donít open them until you are finished programming)
    3. Put a key in the ignition and turn on (no need to start the engine) then back off and take the key out within 5 seconds.
    4. Now hold down the unlock button, while continuing to hold it down press the lock button 3 times, then release the unlock button. The doors will now lock and unlock. DONíT open the doors or door locks yet.
    5. Repeat action 4 for ALL other keys.
    6. Once youíve finished doing this to all the keys you can open the doors and/or use your keys in the ignition.
    7. Try to lock and lock the doors remotely with all the key fobs. If they donít work try again but make sure the sequence is followed completely as itís critical.

    If the key fob still doesnít work then probably the re-chargeable battery is beyond recovery and you will be faced with a ££££ bill for replacement

  4. #3
    BMW Crazed
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    CompDoc's Car Details
    Model of Car:
    325ci
    Year of Manufacture:
    2000
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    Auto
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    Nice one. Beats going down the dealers and taking out a mortgage.

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  6. #4
    Platinum BFuk Member
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    M3 TIM's Car Details
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    Nice one I'll try that just got an x5 and one key is dead.


    One life live it, you only get one chance!!!

  7. #5
    Bimmer Fan
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    Benyon's Car Details
    Model of Car:
    320D SE
    Year of Manufacture:
    2001
    Transmission Type:
    Manuel
    Car Body Type:
    Touring

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    Location
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    This doesn't seem to have worked for me :(

    I've tried the key in different positions but had no joy so I still don't know whether its the key thats at fault or the ring antenna in the ignition or the GM5 module.

    Tim, let me know if you have any success with this...?

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