645108 Adapter AM: Notes
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:
Leak-tight adapter) For sealing the line during the evaporator leakage test in the E70 (included in the delivery specification from 02/2007)