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Home >> Audi >> 2023 >> A5 Quattro Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Air Conditioning (Heating, Ventilation And Air Conditioning) (Coupe)) >> 87 Air Conditioning >> Heat Pump Valve Unit >> Refrigerant Expansion Valve 2 -N637-, REMOVING AND INSTALLING >> Installing

Refrigerant Expansion Valve 2 -N637-, REMOVING AND INSTALLING: Installing

WARNING: This page is about a different variant/trim than selected.

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

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

-- Check the routing after securing refrigerant lines. They must be inserted in their brackets and must not come into contact with other components.

-- Evacuate and fill the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station .

-- 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 .

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

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