Receiver/Dryer, Replacing Without The Need For Flushing Refrigerant Circuit

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

In the receiver/dryer usually there is a dryer cartridge or a desiccant bag are installed (depending on the design of the refrigerant circuit). Refer to DRYER BAG/DRYER CARTRIDGE, REMOVING AND INSTALLING (REFRIGERANT CIRCUIT - 1 , REFRIGERANT CIRCUIT - 2 , REFRIGERANT CIRCUIT 1234yf - 2 , REFRIGERANT CIRCUIT GENERAL INFORMATION R134a , REFRIGERANT CIRCUIT R134a ) and MAINTENANCE, DIAGNOSIS - FLUID CAPACITY TABLES / REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS / REFRIGERANT R1234YF CAPACITY / APPROVED REFRIGERANT OILS AND REFRIGERANT OIL CAPACITIES /TECHNICAL DATA (HVAC) .

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 (REFRIGERANT CIRCUIT, DISCHARGING WITH A/C SERVICE STATION ).

-- Remove The Receiver/Dryer. Refer to RECEIVER/DRYER, REMOVING AND INSTALLING (REFRIGERANT CIRCUIT - 1 , REFRIGERANT CIRCUIT - 2 , REFRIGERANT CIRCUIT 1234yf - 2 , REFRIGERANT CIRCUIT GENERAL INFORMATION R134a , REFRIGERANT CIRCUIT R134a ) .

-- Remove dirt from the receiver/dryer.

-- Weigh the removed receiver/dryer.

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

-- Install the new receiver/dryer. Refer to RECEIVER/DRYER, REMOVING AND INSTALLING (REFRIGERANT CIRCUIT - 1 , REFRIGERANT CIRCUIT - 2 , REFRIGERANT CIRCUIT 1234yf - 2 , REFRIGERANT CIRCUIT GENERAL INFORMATION R134a , REFRIGERANT CIRCUIT R134a ) .

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