Refrigerant Lines, Removing And Installing From Expansion Valve: 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 -E and F- lightly with refrigerant oil before installing. Refer to SEALS AND GASKETS .

-- Check the support ring -G- for proper installation position and check the grommet in the plenum chamber rear panel for damage and proper installation.

-- Thoroughly clean all connections in expansion valve -D- and at refrigerant lines -B and C- and check for damage.

-- 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 .

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 .