Dryer Cartridge And Desiccant Bag, Replacing Without The Need For Cleaning Refrigerant Circuit

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The dryer cartridge/desiccant bag are usually installed in the receiver/dryer depending on the design of the refrigerant circuit. Refer to Refrigerant Circuit (vehicle-specific Service Information).

Pay attention to the general information for replacing components. Refer to GENERAL INFORMATION FOR REPLACING COMPONENTS .

NOTE:

Cleaning the refrigerant circuit means flushing with refrigerant R1234yf. Refer to REFRIGERANT CIRCUIT, CLEANING .

For example, no escape of refrigerant and no ingress of moisture and dirt into the circuit.
If it is determined at a gas analysis that contaminated refrigerant was in the circuit but there is no concern about the A/C system function. Refer to REFRIGERANT GAS ANALYSIS, PERFORMING .

-- Discharge the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .

-- Replace the dryer cartridge/desiccant bag (or reservoir/receiver/dryer). Refer to Refrigerant Circuit (vehicle-specific Service Information).

NOTE:

If the dryer cartridge/the desiccant bag is securely installed in a component (for example, in the receiver/dryer on the condenser) and cannot be replaced separately. Replace the receiver/dryer or condenser. Refer to Refrigerant Circuit (vehicle-specific Service Information).

-- Assemble, evacuate and fill the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .