Refrigerant Circuit Component Allocation, Influence On High And Low Pressure Sides: O-Rings
WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
These rings seal off the connection points between individual components of the refrigerant circuit.
Only O-rings that are resistant to refrigerant R134a and the associated refrigerant oil may be used. Make sure they are original replacement parts.
O-Rings:
-- Always use only once.
-- Make sure diameters -a- and -b- are correct.
-- Coat with refrigerant oil before installing. Refer to Refrigerant Circuit (vehicle-specific repair information) and the appropriate Electronic Parts Information.
NOTE:
The O-ring color coding for refrigerant circuits with R134a has been discontinued. Black and colored O-rings are used. Refer to the appropriate Electronic Parts Information and Refrigerant Circuit (vehicle-specific repair information).