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General E46 Forum
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Old 02-13-2008, 06:21 AM   #1
FastKA24DET
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How do you replace battery key.

Is there any way to replace battery key in 03 bmw 330xi.
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Old 02-13-2008, 08:11 AM   #2
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From what the manual says, it should recharge as it is being used in the ignition hole. "Use this key
while driving for an extended period in
order to recharge the battery." Page 29 in my manual (325i 2002)

I hope this helps
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Old 02-13-2008, 09:38 AM   #3
ca1242
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Although it is a rechargeable battery, it will eventually wear out. If you constantly ue the key and it has had an opportunity to charge, then you do need to replace the battery. The remote is not designed to make this process easy though. Need to cut the key open and do a little soldering. There is a diy out there.
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Old 02-13-2008, 03:15 PM   #4
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http://forum.e46fanatics.com/showthr...ht=key+battery
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Old 02-13-2008, 11:16 PM   #5
FastKA24DET
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Wow.
TNX guys, I thought i had to buy new key.
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Old 02-14-2008, 05:53 PM   #6
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Quote:
Originally Posted by FastKA24DET View Post
Wow.
TNX guys, I thought i had to buy new key.
bmw sealed the key because they want people to buy new key, but we have found a way to replace the battery and it work's just fine.
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Old 02-14-2008, 11:34 PM   #7
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Quote:
Originally Posted by tko200 View Post
bmw sealed the key because they want people to buy new key, but we have found a way to replace the battery and it work's just fine.
I LOVE THIS WEBSITE!!!!
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