64 11 991 Removing and installing/replacing sensor for automatic air recirculation control (AUC)
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Lever out expanding rivets (1).
Feed out cover (2).
Unlock retaining lug (1) on AUC sensor (2).
Remove AUC sensor (1) from holder (2) on blower sealing frame lid (3).
Unlock associated plug connection and disconnect.