86 21... Removing lock striker fixture on rear lid: Installation
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
Rivets (1) have black heads and long shanks. Rivets (2) have silver heads and short shanks.