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

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal. Note The Following: 

-- Replace the O-ring seals; version.

-- 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.

-- Insert the O-ring 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-.

-- Clean the connections on the refrigerant lines and check for damage.

Courtesy of AUDI OF AMERICA, LLC

-- If applicable, inspect the alignment pin -4- for damage and check that it is seated correctly.

-- Inspect the guide ring -2- on the refrigerant line connection for damage.

-- Insert the O-ring seal -3- into the groove -arrow- on the refrigerant line connection -1-.

-- Insert the refrigerant lines into their respective connection.

-- Tighten the bolts.

-- Evacuate and charge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, DISCHARGING WITH A/C SERVICE STATION (R134a) / REFRIGERANT CIRCUIT, EVACUATING WITH A/C SERVICE STATION (R134a) / REFRIGERANT CIRCUIT, CHARGING WITH A/C SERVICE STATION (R134a) (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or REFRIGERANT CIRCUIT, DISCHARGING (R1234yf) / REFRIGERANT CIRCUIT, EVACUATING (R1234yf) / REFRIGERANT CIRCUIT, CHARGING (R1234yf) .

-- Operate the A/C system after filling the refrigerant circuit. Refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT .

-- Check the DTC memory and erase any displayed entries using the :Vehicle Diagnostic Tester  in the "Guided Fault Finding"  function.

TIGHTENING SPECIFICATIONS: 

• Refer to OVERVIEW - CONDENSER, A/C COMPRESSOR, REFRIGERANT LINES AND EXPANSION VALVE 
• Refer to OVERVIEW - TURBOCHARGER [CRUA, DEJA] / OVERVIEW - TURBOCHARGER [CNSB, CNTC] .