July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
61 13... Base of tab connector housings
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Unlock hook (1) with special tool 61 1 360 and slide plug housing downwards out of base.