0490966 113290 Pin Minimum set: Mechanical tools AM: Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
(Retaining pins) For the secondary chain tensioner for blocking the chain tensioner piston, e.g. when removing and installing the camshaft sprockets