2420895 Adapter AM
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:
By sealing off the TXV valve's lines, the refrigerant circuit is shortened enough for the refrigerant mass flow to reach a level sufficient to flush the HV battery.