WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
(Tensioning device) For resetting the adjusting ring and installing the self-adjusting clutch on the flywheel without tension. Replaced by 212170 , 212180 , 21 2 190 (0 493 841)