Disconnect refrigerant line on the connecting piece

CAUTION: Residual pressure in the heating and air conditioning system. 
Injury hazard! 

Courtesy of BMW OF NORTH AMERICA, INC.

• Wear safety goggles and protective gloves when disconnecting the refrigerant line.
• Close the refrigerant lines with seal plugs.

• Loosen screw (1)  .
• Remove the refrigerant line (2)  .