Refrigerant Expansion Valve 1 -N636-, REMOVING AND INSTALLING, LHD: 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.

-- Vehicles with Heat Pump Function, 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 .

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

-- Remove the windshield wiper motor. Refer to OVERVIEW - WINDSHIELD WIPER SYSTEM .

-- Remove the Brake System Pressure Reservoir -VX70- -1- from the bracket and move it to the side with the wires still attached. Refer to OVERVIEW - BRAKE BOOSTER/BRAKE MASTER CYLINDER .

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.

-- Disconnect the connector -9- from the Refrigerant Expansion Valve 1 -N636- -5-.

-- Remove the bolt -6-.

-- Loosen the refrigerant line -10- from the connection on the Refrigerant Expansion Valve 1 -N636- -5-.

-- Remove the bolts -4-.

-- Remove the bolt -3-.

-- Loosen the refrigerant line from the connection on the heater core, and remove together with the Refrigerant Expansion Valve 1 -N636- -5-.

-- Remove the bolt -3-.

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the refrigerant line -2- from the connection on the Refrigerant Expansion Valve 1 -N636- -4-.