Bentley Continental GT from 2006 no longer starts, comfort control unit no voltage

Hello dear forum community, I need the help of the Vw experts. I am 34 years old and called Burak. I’ve had a Bentley Continental GT from 2006 for 6 years with more than 200,000 km. But since a few days it doesn’t start. First I thought the engine is gone because it just went out while driving and the starter couldn’t turn any more, just clicked. Today I bridged it with the Cayenne. He jumped but went straight out again. Al so engine and starter OK. Read out. immobilizer Active. Comfort control unit no signal no voltage. I can’t find the fuse to this ECU. Even where this seat I haven’t found yet. Since I’ve already taken some of the Phaeton during repairs I thought I’d ask you for advice. Because in the category Bentley very few seem to be represented here who screw themselves. Thank you!