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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 09-13-2012, 11:28 PM   #1
Lomac
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Join Date: Sep 2012
Location: Ottawa
Posts: 3
My Ride: 2001 330i
Key Synced but still wont work

Hi guys, Just bought my first e46 - a 2001 330i. I love the car but the keyless entry doesnt work, I tired the re-syncing of the key fob. At the end the doors are supposed to all lock to show that the key was programmed correctly... This happened so I thought I was good! But... The buttons on the key are still ineffective.

Any ideas why? Battery in the key? spare key behaves the same way.
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Old 09-13-2012, 11:41 PM   #2
scarede46er
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Join Date: Aug 2012
Location: Clemson, SC
Posts: 1,246
My Ride: 2001 BMW 325i ZSP
2001 means the battery is dead. Officially you need a new key. Unofficially there is a way to replace the battery. Search the forums.
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Old 09-14-2012, 07:39 AM   #3
Lomac
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Join Date: Sep 2012
Location: Ottawa
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My Ride: 2001 330i
Whats the difference with 2001? I thought all the diamond shaped keys are supposed to charge through the ignition?

Thanks for the responses guys.
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Old 09-14-2012, 08:18 AM   #4
jasonbimmer
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Join Date: Sep 2011
Location: Omaha, NE
Posts: 5,686
My Ride: 2001 BMW 330xi
Quote:
Originally Posted by Lomac View Post
Whats the difference with 2001? I thought all the diamond shaped keys are supposed to charge through the ignition?

Thanks for the responses guys.
that means your 11 year old battery is dead, wont hold a charge anymore.
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Old 09-13-2012, 11:46 PM   #5
bratliff
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Join Date: Jun 2012
Location: Atlanta
Posts: 401
My Ride: 330i
My key was dead when I first got my car too. I drove with it or a few days and it charged the battery back and it's working fine. If you just got the car, maybe drive for a couple of days and see if the battery charges.
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