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Hi ,

i took out my 2nd key which i didn't use it for a long time and as i started using it i m getting a message on dashboard saying that i have to replace the battery for the key, which was something new for me as i didn't that there is a battery in the remote key. but anyways how do i replace that outside the dealer, can i do it on my own, where do i get battery from?

Thanks for your suggestions and help.
 

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You've gotta download the pdf manual (from the bmwusa website) and it's on pg 36.
We've gotta give that battery back the dealer and surprise them!! :) (attached pix)
 

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It's the CR2450 type, quite common, and available at places where coin batteries are sold (Fry's, Target, Home Depot, etc.)
 
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