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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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Old 10-05-2015, 12:37 PM
Robo1981 Robo1981 is offline
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Location: Scotland
Join Date: Oct 2015
Posts: 1
Mein Auto: X3
Faulty Key

Guys can anyone help. The other day my key remote stopped working, I followed the guide to re initialise the key remote (turn on and off, press unlock and hold while pressing lock three times) which works. However this then means the second key remote won't work. Any suggestions on how to do this and get both keys working? Its a 1996 X3 with the diamond key

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Old 10-06-2015, 10:57 PM
joylove joylove is offline
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Location: USA
Join Date: Mar 2013
Posts: 1,681
Mein Auto: 08 e83 LCI
You need to do the same process with all keys in one batch.
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Old 10-06-2015, 11:04 PM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
Join Date: Feb 2008
Posts: 3,638
Mein Auto: 2004 X3 2.5i
^ Yes, just like a garage door opener - once you program a new rolling code for one remote you have to include any other existing remotes in the process or they are not going to work.
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