Refrigerant Lines, Disconnecting And Connecting From Condenser, Q5 From Product Improvement: Installing

WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

Installation is the reverse of removal, noting the following:

Coat the O-ring seals lightly with refrigerant oil before installing. Refer to SEALS AND GASKETS .

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

-- Check the alignment pin (installed in the condenser connection or the refrigerant line, not present in all connections) for damage and correct seating.

-- Check the routing of the refrigerant lines after attachment. They must be inserted in the provided brackets in a tension-free manner and must not come in contact with other components.

-- Evacuate and charge the refrigerant circuit. Refer to Refrigerant Circuit or Working with A/C Service Station (1 Of 2) and Working with A/C Service Station (2 Of 2) .

Q5 with High-Voltage System

-- Initiate the basic setting of the A/C system using the Thermal Management Control Module -J1024- and activate the electric valves using the routine "Stop routine refrigerant circuit filling/flushing" in the Vehicle Diagnostic Tester.

Continuation for All Vehicles

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