You can confirm the key fob is sending signals at a store that sells batteries for remotes they often will have a tester that lights up.


Often the switches fail so test each button that it lights up the tester. Once to confirm that find a YouTube video showing how to reprogram the key fob and realize you have to do all keys you have at the same time.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)