Dryer Cartridge And Desiccant Bag, Replacing Without The Need For Flushing Refrigerant Circuit
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.
NOTE:
Cleaning the refrigerant circuit means flushing it with refrigerant R134a (Refer to REFRIGERANT CIRCUIT, CLEANING (FLUSHING) WITH REFRIGERANT R134A ) or blowing through with compressed air and nitrogen (Refer to REFRIGERANT CIRCUIT, CLEANING WITH COMPRESSED AIR AND NITROGEN ).
For example, no escape of refrigerant and no ingress of moisture and dirt into the circuit.
-- Discharge the refrigerant circuit.
-- Replace the dryer cartridge. Refer to Refrigerant Circuit (vehicle-specific repair information).
-- Assemble, evacuate and charge the refrigerant circuit.