Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing: Installing

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

-- Clean the connections on the expansion valve -2- and on the inner heat exchanger -4- and inspect them for damage.

-- Thoroughly clean the refrigerant lines around the connection area and check for damage.

-- Coat the new seals -1- and -3- with refrigerant oil before installing.

-- Insert the seals -1- and -3- into the groove on the inner heat exchanger connection.

-- Insert the inner heat exchanger on the expansion valve.

-- Tighten the bolt -5-.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the refrigerant lines -2- and -4- with the inner heat exchanger on the connections.

-- Install and tighten the nuts -1- and -3-.

Vehicles with Refrigerant R134a

-- Fill the refrigerant circuit. Refer to Working with A/C Service Station .

-- Perform the leak test on the refrigerant circuit line connections that were closed again. Refer to Refrigerant Circuit, Detecting Leaks .

Vehicles with Refrigerant R1234yf

-- Charge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, CHARGING .

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

Continuation for All Vehicles

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