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Expansion Valve, Removing And Installing: Installing

GWWA87-11401Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal and note the following:

-- Coat the new seals with refrigerant oil before installing.

-- Replace the seals -1 and 4- on the connecting tubes -2 and 3- to the evaporator.

-- Press in the refrigerant pipe -2- by hand on the expansion valve.

GWWA87-11329Courtesy of AUDI OF AMERICA, LLC

-- Install the bolt -1- by hand and the tighten to the specified tightening specification.

NOTE:

The expansion valve is available in different versions (same housing but different control characteristic). Allocation. Refer to the Parts Information.

Check the refrigerant pipes leading to the evaporator for contamination and damage.

If the heat shield insulation -2- is missing or not installed correctly, it can cause reduced output of the A/C system (change of the set control characteristic due to radiant heat).

GWWA87-11400Courtesy of AUDI OF AMERICA, LLC

Vehicles with Refrigerant R134a

-- Fill the refrigerant circuit. Refer to Working with A/C Service Station .

-- Put the A/C system into operation after filling. Refer to A/C SYSTEM, OPERATING AFTER CHARGING R134A .

Vehicles with Refrigerant R1234yf

-- Fill the refrigerant circuit. Refer to Working with A/C Service Station .

-- Put the A/C system into operation after filling. Refer to A/C SYSTEM, OPERATING AFTER CHARGING 1234YF .