Expansion Valve, Removing And Installing: Removing

On some vehicles, the connecting pipe should be removed from the charge air cooler. Refer to OVERVIEW - CHARGE AIR SYSTEM [CZDA, DGXA, DJXA, CWLA] / OVERVIEW - CHARGE AIR SYSTEM [DKFA, CXDB] .

Vehicles with a TDI engine

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-- Press the release buttons on the crankcase ventilation hose -1- and remove the hose from the cylinder head cover.

-- Free up the vacuum hoses on the air duct pipe -arrows-.

-- Loosen the hose clamp -3-.

-- Pivot the air guide pipe with the connection rearward and remove from the turbocharger.

Continuation for All Vehicles

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-- Remove the sheet metal nuts -1- and -3-.

-- Fold the heat shield -2- as far forward as possible direction of the -arrow-.

Vehicles with Refrigerant R134a

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

Vehicles with Refrigerant R1234yf

-- Discharge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, DISCHARGING .

CAUTION:

Danger or frostbite due to refrigerant coming out under pressure.

Frostbite on the skin and other parts of the body is possible.

Wear safety gloves
Protective Eyewear
Extract refrigerant and open the refrigerant circuit immediately.
If more than 10 minutes elapse after extracting the refrigerant and the refrigerant circuit was not opened, extract the refrigerant again. Pressure can develop in the refrigerant circuit due to evaporation.

Continuation for All Vehicles

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-- Remove the bolt -1-.

-- Disconnect the refrigerant line -2- with the inner heat exchanger from the expansion valve.

-- Remove the bolts -1- and -3-.

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-- Remove the expansion valve -4- from the heat shield insulation -2-.

-- Seal the open lines and connections with clean plugs from the :VAS6122 .