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#1
06-22-2008, 06:52 PM
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Charge car key? Alarm doesnt work....
People tell me it auto charges when you leave the key in the ignition. But I've had my car for years and never had the alarm (in the key) give out.
Any other remedies?
__________________
2001 X5 4.4SP Black on Black 
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#3
06-22-2008, 06:57 PM
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Quote:
'given out' meaning that the key wont arm or disarm my car (buttons dont work). it always 'charged' enough to work. but i've been leaving it in the ignition with ample time, but it doenst charge. wondering if the battery that is charged/recharged in the key gave out... thoughts?
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#4
06-22-2008, 07:06 PM
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Quote:
when you say leaving it in the ignition, you mean you are driving it correct? also, had you not been using this key for a while? generally with normal use, it should stay charged enough to lock and unlock the car. If the key had not been used in a while I would worry about the battery in it not being charged. Otherwise I would tend to think it was more the battery itself inside of the key has died and is unable to be recharged, rather than being a recharge issue. Last edited by ca911 : 06-22-2008 at 07:48 PM.
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#5
06-22-2008, 07:33 PM
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The rechargeable battery in your key may have died. BMW have no fix except a new key (very expensive) however others have opened their keys and replaced the battery (requires some soldering). Here's the post with some pics.
__________________
Cheers, Brian ========================================= 2001 X5 4.4i Sport Black Sapphire, Hi Gloss Shadowline, Full Privacy Glass. Too Cool for Jack Bauer 
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#6
06-27-2008, 02:44 AM
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so dealer friend reprogrammed it and it works like a charm. it was like holding down the trunk and lock buttons while taking it in and out of the ignition.
i think b/c my car battery had died it reset the codes in the fob. good to go. $0 spent.
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