Dryer Cartridge, Removing And Installing, From Receiver/Dryer On Condenser: Installing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of AUDI OF AMERICA, LLC

Install in the reverse order of removal while noting the following:

Check the receiver/dryer -E- and the threads on the condenser via the opening for debris and damage -arrow-.
Replace the plug -A- with the filter element and both O-ring seals -B and C- (included in the delivery of the dryer). Refer to the Parts Information.
Lightly coat the O-rings -B and C- with refrigerant oil. Refer to REFRIGERANT CIRCUIT SEALS .
Make sure the O-rings sit correctly inside the grooves of the respective components.
Keep the desiccant bag -D- sealed in its air-tight package as long as possible. Open the package just before inserting the dryer cartridge in the receiver/dryer of the condenser. The dryer cartridge absorbs moisture from the surrounding air in a very short time and becomes unusable.

-- Remove the desiccant bag -D- from its package and insert in the receiver/dryer.

-- Install the plug -A- and the O-ring seals -B and C-.

-- Evacuate and charge the refrigerant circuit. Refer to Refrigerant Circuit or Working with A/C Service Station .

-- Install the remaining removed components.

Vehicles with High-Voltage System

-- Switch the ignition on.

-- Vehicles with Heat Pump Function, Initiate the basic setting of the A/C system through the Thermal Management Control Module -J1024- and activate the power-controlled valves using the routine Charge/flush the refrigerant circuit stop routine using the Vehicle Diagnostic Tester .

Continuation for All Vehicles

-- Operate the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT .