Heater Core, Removing And Installing: Removing
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-.
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.
-- 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.
-- 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-.
-- Release the securing tabs -4- -arrows- and remove the cover -2-.
-- If the noise insulation cannot be removed easily, open the cover tabs -arrows-.
-- Remove the heater core to the left.