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

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. 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, FLUSHING 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 [For engine(s) CTUA, CEUC, CRDB, CGXB, CPNB] System Overview - Refrigerant Circuit (vehicle-specific repair information).

-- Remove receiver/dryer, or accumulator. Refer to [For engine(s) CTUA, CEUC, CRDB, CGXB, CPNB] System Overview - Refrigerant Circuit (vehicle-specific repair information).

-- Remove dirt from receiver 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.