61 13... Control unit plugs, 25-, 35-, 55-, 83-, 88-pin
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.
Special tools required:
Release screws (1).
Lever out pin sensor (2) with gasket (3) in direction of arrow.
Remove gasket (3).
Pull out housing lock (4) in direction of arrow and unlock.
Press down retaining hook (5) of corresponding contact and pull out cable with contact.
Special tool 61 0 312 (61 1 134) for mini flat spring contacts.
Special tool 61 0 314 (61 1 135) for mini flat spring contacts.
Special tool 61 0 315 (61 1 151) for double flat spring contacts (dual retaining hooks).
Special tool 61 0 323 (61 1 152) for double flat spring contacts (special retaining hook).