Heater And A/C Unit, Removing And Installing: Installing

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

Courtesy of AUDI OF AMERICA, LLC

Install in the reverse order of removal while noting the following:

-- Pay attention to the correct seating of the seal -1- in the groove -arrow- of the corresponding refrigerant line.

-- Coat the new seals with refrigerant oil before installing the refrigerant lines.

CAUTION:

There is a risk of damaging the A/C compressor if the refrigerant circuit is empty.

- Never start the engine with the refrigerant circuit empty.

Vehicles with Refrigerant R134a

-- Fill the refrigerant circuit. Refer to the appropriate Service Information .

-- Perform the leak test on the refrigerant circuit line connections that were closed again. Refer to the appropriate Service Information .

Vehicles with Refrigerant R1234yf

-- Charge the refrigerant circuit. Refer to WORKING WITH A/C SERVICE STATION .

-- Perform the leak test on the closed line connections of the refrigerant circuit. Refer to LEAKS, FINDING .

Continuation for all vehicles

-- Fill the coolant. Refer to COOLANT, DRAINING AND FILLING - 4 CYL or COOLANT, DRAINING AND FILLING - 6 CYL .

-- Start the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT .

-- Check the heater and A/C unit function.