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Old 04-14-2014, 08:17 AM
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Keyfob malfunction

Hi all,

I have a 2008, 3.0 X5 and one of my keys (non-comfort access) is malfunctioning. I cannot lock or unlock the car by pressing the buttons on the keyfob. But I can start the car with it. Does anybody else has experienced this issue? I'm currently using my other key so it's no emergency but would like to have two fully functional keys. Does it just need to be reprogramed or is the key toast? Any help would be greatly appreciated.

Thanks,
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Old 04-14-2014, 10:21 AM
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As the manual says you need to switch the keys and use the spare one for at least a few days from time to time.Non keyless-go keys have a battery inside that is charged when the key is in the slot.The start function is independent of the battery.
The key is sealed,but I ususally open them by prying very gently between the twon halves with a small screwdriver.After that the battery can be replaced and key sealed again with glue.
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Old 04-14-2014, 10:37 AM
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Thanks bawareca,

My guess is that the battery inside is bad since this was the key that I was using regularly. All of the sudden the lock and unlock buttons stopped working. Do you score the battery down the middle with like an exacto knife or something similar to open the keyfob or do you just pry it open with the screwdriver?

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Old 04-14-2014, 10:57 AM
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I remove the key blade and stick the screwdriver tip between the halves.This way the dent is not visible when the remote is glued back.You have to be carefull and going straight a head because the tip goes very close to the circuit board.
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