Check Valve
WARNING: This page is about a different variant/trim than selected.
The check valves disconnect in different areas of the refrigerant circuit. Refer to REFRIGERANT CIRCUIT (vehicle-specific service information).
NOTE:
The illustrated check valve -3- is installed for example on a Audi Q7 e-tron. Refer to REFRIGERANT CIRCUIT (vehicle-specific service information).
The check valves in the refrigerant circuit in the flow direction have a specified residual pressure (approximately 0.1 bar (1.45 psi) or 100 mbar (1.45 psi)). So that the refrigerant circuit can be completely evacuated (residual pressure less than 5 mbar (0.073 psi)), all electrically activated valves must be opened.
Depending on the version the flow direction can be marked using a sticker.