Check Valve In Refrigerant Line From Inner Heat EXCHANGER, Removing And Installing: Removing

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

-- Switch off (deactivate) the "parking air conditioner". Refer to Owner's Manual.

-- Switch the ignition on.

-- Initiate the basic setting of the A/C system using the Thermal Management Control Module -J1024- and open the electric valves using the routine Refrigerant Circuit, Extract, Evacuate and Fill in the Vehicle Diagnostic Tester .

-- Switch off the ignition.

-- Discharge the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station .

-- Remove the left front wheel housing liner. Refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING (for accessibility to the connection points shown).

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Danger of frostbite due to refrigerant coming out under pressure.

Frostbite on the skin and other parts of the body is possible.

- Wear safety gloves.

- Wear protective eyewear.

- Evacuate or drain refrigerant and open the refrigerant circuit immediately.

- If more than 10 minutes elapse after extracting or draining the refrigerant and the refrigerant circuit has not been opened, extract or drain the refrigerant again. Pressure develops in the refrigerant circuit due to evaporation.

-- Remove the bolt -C-.

-- Remove the refrigerant line -B- from the connection for the inner heat exchanger -A-.

-- Remove the bolts -5-.

Fig 1: Exploded View Of Check Valve

Courtesy of AUDI OF AMERICA, LLC

-- Remove the refrigerant line -4- from the connection to the inner heat exchanger -A-.

-- Remove the check valve -3-.