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

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The dryer cartridge / the desiccant bag depending on the design of the r are usually installed in the receiver/dryer. Refer to Refrigerant Circuit .

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 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 .

NOTE:

If the dryer cartridge/the desiccant bag is securely installed in the component (for example in the receiver/dryer on the condenser) and cannot be separately replaced, replace the receiver/dryer or condenser. Refer to Refrigerant Circuit .

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