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Heater Core, Removing And Installing: Removing

GWWA21-10777Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Vehicles with a TDI engine

-- 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-.

-- Remove the bolt -2-, pivot the air duct pipe with the connection toward the rear and remove it from the turbocharger.

Continuation for All Vehicles

-- Mark the installation position of the coolant hoses -1 and 4-.

GWWA19-11547Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
NOTE:

The heater core is designed for a specific coolant flow direction. Therefore, coolant hoses must be connected on the correct sides.

-- Clamp off the coolant hoses -1 and 4- using :3094  .

-- Lift the clips -2 and 3-.

-- Place the :VAS6208  under the engine.

-- Remove the coolant hoses -1- and -4- from the heater core for the heater.

-- Connect a suitable hose -A- to the upper connection of the heater core.

GWWM80-10047Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Hold a suitable container -B- under the lower connection to the heater core -C-.

-- Use a compressed air gun to carefully blow the remaining coolant through the hose -A- out of the heater core and into the container -B-.

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

-- If equipped, remove the driver side knee airbag. Refer to the appropriate service information .

-- Remove the left footwell center console trim panel. Refer to OVERVIEW - CENTER CONSOLE .

-- Vehicles with an auxiliary heater: remove the Auxiliary Heater Heating Element -Z35- with the Auxiliary Heater Control Module -J604-. Refer to Auxiliary Heater Heating Element -Z35-, REMOVING AND INSTALLING .

-- Cover the area under the connections for the coolant hoses in the plenum chamber, for example, with waterproof foil and absorbent paper.

-- Lift the catch -6- and remove the clamp -5-. Remove the coolant line -4- from the heat exchanger.

GWWA87-11357Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolt -3-.

-- Remove the screw-type clamp -2- and then remove the coolant line -1- from the heater core.

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

-- Remove the bolts -1, 3 and 5-.

GWWA87-11358Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Release the securing tabs -4- -arrows- and remove the cover -2-.

-- If the noise insulation cannot be removed easily, open the cover tabs -arrows-.

GWWA87-11341Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the heater core to the left.