Dryer Cartridge And Desiccant Bag, Replacing Without The Need For Flushing Refrigerant Circuit
WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. 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 Refer to REFRIGERANT CIRCUIT, CLEANING (FLUSHING) WITH REFRIGERANT R134A ) or blowing through with compressed air and nitrogen (refer to 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 service information).
-- Assemble, evacuate and charge the refrigerant circuit.