[sam9116]

So your TCU no longer works, SOS call malfunction is related to TCU
Remove your TCU from the car
Install most by pass loop on TCU green cables

transfer and combine all wires inside the white plug from the TCU to the MULF blue plug, MULF will take over bluetooth call functionality. All pin locations from the TCU plug transfer directly to the same pin location on the MULF, you should not have to plug a pin into a hole where there is already a pin

You do have to tell the car you no longer have the TCU by coding it

remove

$612A BMW ASSIST
$619A EMERGENCY SOS CALL SYSTEM

from VO using NCSExpert

shoot me a message if you need help to setup coding, there is no skipping this