Hi guys, sorry to bring back an old thread. My bluetooth module got damaged due to water from sunroof. My car is 2004/05. Original module part # 84216945387 new(old) replacement # 84216955522. Replaced the unit but still no connection to my phone. Tried fuse #74 no luck. On the head unit I enter the PK code and it accepts it. Seem the car will not start without the code. Do these modules need to be coded to the head unit?

thanks

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2005 X5 4.4i M Sport
2003 X5 4.4i