Heater and A/C Unit Refrigerant Shut-Off Valve -N541-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2023 Volkswagen Arteon. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the air duct pipe. Refer to TURBOCHARGER AIR DUCT PIPE/CHARGE AIR COOLER, REMOVING AND INSTALLING .

-- Release and disconnect the connector for the High-Voltage Battery Coolant Valve -N688-.

-- Remove the nuts -arrows-.

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-- Loosen the bracket -1- from the plenum chamber bulkhead and lay aside the High-Voltage Battery Coolant Valve -N688- with the refrigerant lines still connected.

-- Remove the nuts -1 and 3-.

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-- Fold the heat shield -2- as far forward as possible -arrow-.

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.

- Extract refrigerant and open the refrigerant circuit immediately.

- If more than 10 minutes have elapsed since evacuating the refrigerant and the refrigerant circuit was not opened, evacuate the refrigerant again. Evaporation can cause pressure to develop in the refrigerant circuit.

-- Discharge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, DISCHARGING .

-- For all following procedures immediately seal all the open lines and connections with clean plugs from the Engine Bung Set:VAS6122 .

-- Release and disconnect the connector -C-.

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-- Loosen the union nuts -E- while counterholding on the Heater and A/C Unit Refrigerant Shut-Off Valve -N541- -D-.

-- Loosen the refrigerant line -F- to the coupling point on the right longitudinal member from the bracket on the plenum chamber bulkhead.

-- Remove the Heater and A/C Unit Refrigerant Shut-Off Valve -N541- -D-.

Fig 1: Exploded View Of High-Voltage Battery Heater Core Refrigerant Shut-Off Valve -N542- With O-Ring

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.