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      11-10-2013, 09:51 PM   #1
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Changing keyfob battery

Just throwing this out there for those who doont know they can change their key battery.

Sometimes the funniest ways to find out your keyfob can have a battery is by arguing with your wife and having her throw your keys against the wall hope this helps anyone whose wondering.
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      11-10-2013, 10:05 PM   #2
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People don't know that key fobs have replaceable batteries? Good to know.
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      11-10-2013, 10:10 PM   #3
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I read a thread that some thought they had to replace the keyfob so just trying to help
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      11-10-2013, 10:40 PM   #4
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Quote:
Originally Posted by jessandjamie View Post
People don't know that key fobs have replaceable batteries? Good to know.
Only if equipped with Comfort Access.

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      11-10-2013, 11:06 PM   #5
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Thanks for the info, I was wondering this the other day.
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      11-10-2013, 11:09 PM   #6
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Quote:
Originally Posted by Tom K.
Quote:
Originally Posted by jessandjamie View Post
People don't know that key fobs have replaceable batteries? Good to know.
Only if equipped with Comfort Access.

Tom
That's dumb, when I bought my e90 off the auction block I only got one key too, $330 is crazy!
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      11-10-2013, 11:41 PM   #7
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Quote:
Originally Posted by Taran.J View Post
That's dumb, when I bought my e90 off the auction block I only got one key too, $330 is crazy!
Holy shit man 330
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      11-10-2013, 11:55 PM   #8
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I always wondered what happens if I loose my key fob.
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      11-10-2013, 11:57 PM   #9
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The other keyfob says where's my brother ...... and you say hes in a better place
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      11-11-2013, 12:07 AM   #10
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My fob is the only child!
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      11-11-2013, 02:57 AM   #11
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How does one make the wife angry as to throw objects at the wall and not at you?
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      11-11-2013, 02:58 AM   #12
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Quote:
Originally Posted by Taran.J View Post
That's dumb, when I bought my e90 off the auction block I only got one key too, $330 is crazy!
Replacing the fob for my wife's Mitsubishi Outlander ran me $400, 65% of it was in coding and labor hours.
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      11-11-2013, 08:37 AM   #13
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Quote:
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How does one make the wife angry as to throw objects at the wall and not at you?
She was aiming at me and I dodged the keys
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      11-11-2013, 12:41 PM   #14
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Quote:
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Only if equipped with Comfort Access.

Tom
I have CA and I replaced my batteries...
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      11-11-2013, 05:25 PM   #15
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Quote:
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I have CA and I replaced my batteries...
That's what I said. But if you didn't have CA, your fob battery would charge when in the dash slot and would not be user replaceable.

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      11-11-2013, 05:51 PM   #16
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That's what I said. But if you didn't have CA, your fob battery would charge when in the dash slot and would not be user replaceable.

Tom
So, the battery in a non-CA fob never needs to be replaced...? If true, good to know. I'd always assumed I'd have to replace it at some point.
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      11-11-2013, 05:56 PM   #17
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So, the battery in a non-CA fob never needs to be replaced...? If true, good to know. I'd always assumed I'd have to replace it at some point.
If its non-CA, you cannot change the battery itself. The whole keyfob needs to be replaced by BMW. I remember reading that for non-CA, the battery is hardwired to the board?
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      11-11-2013, 07:20 PM   #18
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Quote:
Originally Posted by 1chanc3 View Post
If its non-CA, you cannot change the battery itself. The whole keyfob needs to be replaced by BMW. I remember reading that for non-CA, the battery is hardwired to the board?
Thx. Sheesh, always something new to learn on these boards.
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