Refrigerant Shut-Off Valve -V424-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

For all the following work, close the open lines and connections with clean plugs from the Engine Bung Set :VAS6122 .

-- Initiate the A/C system basic setting through the Thermal Management Control Module -J1024- and open the power-activated valves through the stored routine "Extract, evacuate and fill the refrigerant circuit" using 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 (1 Of 2) and Working with A/C Service Station (2 Of 2) .

-- Remove the plenum chamber cover. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

-- Disconnect the connector -D-.

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Danger or 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 was not opened, extract or drain the refrigerant again. Pressure develops in the refrigerant circuit due to evaporation.

-- Mark the position of the refrigerant lines -A and E- to the Refrigerant Shut-Off Valve -V424- -G-.

-- Loosen the union nuts -H and F- at the same time counterhold on the Refrigerant Shut-Off Valve -- -G-.

-- Remove the Refrigerant Shut-Off Valve -V424- -G-.