64 00... Overview components, refrigerant circuit

Fig 1: Overview Of Refrigerant Circuit Components (Without Heat Pump)

Courtesy of BMW OF NORTH AMERICA, INC.

Refrigerant circuit without heat pump (optional equipment 4T9): 

Fig 2: Overview Of Refrigerant Circuit Components (With Heat Pump)

Courtesy of BMW OF NORTH AMERICA, INC.

Refrigerant circuit with heat pump (optional equipment 4T9): 

Fig 3: Overview Of Refrigerant Circuit Components (With Heat Pump)

Courtesy of BMW OF NORTH AMERICA, INC.

Refrigerant circuit with heat pump (optional equipment 4T9):