REFRIGERANT LINES, DISCONNECTING AND CONNECTING AT A/C COMPRESSOR, Vehicles with 3.0L and 3.2L: Installing

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

Installation is done is reverse order, observe the following:

-- Replace the O-rings seals -D- and -E-. Allocate correct version.

Fig 1: Identifying Bolts And Refrigerant Pipes

Courtesy of AUDI OF AMERICA, LLC

-- Check the guide ring -F- on the connections for both refrigerant lines -B- and -C- for damage.

-- Clean the refrigerant line and A/C compressor connections and check for damage.

NOTE:

Do not use the O-rings from the sealing caps that are installed on the connections in the replacement compressor when installing the lines.

Follow the instructions for installing the O-rings. Refer to REFRIGERANT CIRCUIT SEALS .

-- Lightly coat the O-ring seals with refrigerant oil prior to installation. Refer to REFRIGERANT CIRCUIT SEALS .

-- Insert the respective O-ring -D- and -E- into the groove -G- on the connections for both refrigerant lines -B- and -C-.

-- Insert both refrigerant lines into the respective connection on the A/C compressor.

Fig 2: Disconnect Connector For A/C Compressor Regulator Valve

Courtesy of AUDI OF AMERICA, LLC

-- Tighten bolts -2- and -3-.

Tightening specification: 9 Nm (bolts with an M6 thread) and 25 Nm (bolts with an M8 thread).

NOTE:

Following attachment of the refrigerant lines to A/C compressor (and installation of the A/C compressor), check the routing of the lines. They must be inserted in holders provided and not make contact with other components.

-- Connect the connector -1- to the A/C Compressor Regulator Valve -N280-.

-- Evacuate the refrigerant circuit and fill it. Refer to USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).

-- Install the remaining removed components.

-- Turn on the ignition.

-- Check the DTC memory for the Climatronic Control Module -- display and control head and erase any displayed malfunctions, if necessary using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.

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

NOTE:

Observe the information regarding operating the A/C system after filling. Refer to A/C SYSTEM, OPERATING AFTER CHARGING , (Refrigerant R134a, Servicing; A/C System, General Information). After charging the A/C system before activating the A/C system.