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Hello all. My bmw gives me a call sos system failure warning and then the Bluetooth failed to operate. It's not greyed out however it can't be switched on or off. What has happened any help would greatly be appreciated.
 

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SOS and Bluetooth are both a function of the Telematics Control Module (TCU) located in the Trunk.

Sounds like your TCU has failed and needs replaced.
 
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