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      01-31-2018, 09:45 PM   #4
frisbeeguy
Private First Class
United_States
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Drives: BMW,Tesla, etc.
Join Date: Jun 2017
Location: Cincinnati, OH

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I think both keys need battery replacement. There could also be an RFID chip issue (since the main key only unlocks the car and doesn't start the car), but first step is battery replacement. https://www.youcanic.com/bmw/key-battery-replacement
Appreciate 0