0490973 113340 Pin Minimum set: Mechanical tools MW: Notes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
(lock pin (2 pieces)) For retaining the chain tensioner piston (e.g. when removing and installing the cylinder head) and to lock the drive belt tensioner