Refrigerant Lines On The Mechanically-Powered A/C Compressor, Connecting And Disconnecting: Installing

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Install in reverse order of removal and Note The Following: 

-- Replace the O-rings. Refer to the Parts Information for the version.

-- If equipped, check the alignment pin -4- for damage and proper seating.

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

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

-- Insert the refrigerant lines -1 and 3- into the respective connection on the A/C compressor.

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -2 and 4- using the :3320/1  .

-- 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) .

After completing repairs before the following work on the Climatronic Control Module - J255- control head. Use the :Vehicle Diagnostic Tester  in the "Guided Fault Finding"  function.

-- Switch the ignition on.

-- Check the Climatronic Control Module -J255- control head DTC memory and delete any displayed faults if necessary.

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