Receiver/Dryer Or Reservoir, 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, in the event of accident damage; no escape of refrigerant and no ingress of moisture and dirt into circuit.

-- Discharge the refrigerant circuit.

-- Replace the restrictor. Refer to Refrigerant Circuit (vehicle-specific repair information).

-- Remove the receiver/dryer or reservoir. Refer to Refrigerant Circuit (vehicle-specific repair infomation).

-- Remove dirt from the receiver/dryer or reservoir.

-- Weigh removed receiver/dryer or reservoir.

-- Add refrigerant oil to the reservoir until it is the same weight as the receiver/dryer that was removed.

-- Install new receiver/dryer or reservoir.

-- Assemble, evacuate and charge the refrigerant circuit.