Refrigerant Lines In Plenum Chamber, Removing And Installing: Removing

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. 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 .

Removing

-- Switch off the ignition.

-- Discharge the refrigerant circuit. Refer to Refrigerant Circuit or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

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

-- To remove the refrigerant line -C- remove the windshield wiper motor. Refer to Windshield Wiper Motor -V-, REMOVING AND INSTALLING .

Courtesy of AUDI OF AMERICA, LLC

-- Only if necessary (depending on the vehicle), loosen the plenum chamber bulkhead from the vehicle and move to the side (do not remove). Refer to OVERVIEW - BULKHEAD .

-- Remove the nut -D-.

-- Loosen the service connections -B and F- from both refrigerant lines to the expansion valve from the bracket -A- and remove from the inner heat exchanger -E-.

-- Remove the nut -A-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the refrigerant lines -B and C- from the front expansion valve -D-. Refer to REFRIGERANT LINES, DISCONNECTING FROM FRONT EXPANSION VALVE AND RECONNECTING .

-- Remove the refrigerant line -B-.

-- Remove the refrigerant lines -C- toward the left fender (under the brake booster).