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Old 02-25-2019, 03:26 AM
cn90 cn90 is offline
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Join Date: Jun 2014
Location: Omaha, NE
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Question for the key guru...

- 2004 X3 2.5i with 85K miles with one main key fob and one plastic key.

- Question re plastic key: what if I make another key for let's say $10-$20 or so (metal key cut by local locksmith WITHOUT chip) and carry the "dummy" metal key ALWAYS in the same key chain as the plastic key. Can I start the engine with the METAL key while the plastic key is dangling in the key chain? In other words, how close does the RFID chip have to be near the antenna ring?
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1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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