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      06-13-2013, 07:49 AM   #1
08rookie
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key died??

i have an 02 e39. came with two keys. one key is completely useless. i was told it is dead? like a battery inside the key wont allow the key to turn the car on. how do i recharge this or how can i get another key??
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      06-14-2013, 05:28 PM   #2
dtwyim
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Replace battery?
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      06-14-2013, 06:08 PM   #3
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Replace battery?
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      06-16-2013, 09:32 AM   #4
marblehead
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Toast?

I think we're SOL. . .All of my preliminary research shows little hope for replacing a rechargeable battery in these keys. . .They're designed in such a way as to make replacing them extremely difficult, the two halves of the key sealed together requiring cutting with a utility knife and then the contact tabs against the battery soldered in place. Mine on my '08 just died and will no longer take a charge apparently. I'm going to "park" the key in the ignition to see if it helps but I'm doubtful.

This your problem as well?
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      06-16-2013, 01:06 PM   #5
dtwyim
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Originally Posted by marblehead View Post
I think we're SOL. . .All of my preliminary research shows little hope for replacing a rechargeable battery in these keys. . .They're designed in such a way as to make replacing them extremely difficult, the two halves of the key sealed together requiring cutting with a utility knife and then the contact tabs against the battery soldered in place. Mine on my '08 just died and will no longer take a charge apparently. I'm going to "park" the key in the ignition to see if it helps but I'm doubtful.

This your problem as well?
I am not sure about yours, but my 2008 with comfort access have a battery that is not rechargeable and is easily replaced.

But OP has a 2002, so could be a totally different key.
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