Cylinder Head, Removing And Installing: Removing

WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before installing the cylinder head the engine support and the engine mount are temporarily re-installed because the eyes from the engine support bridge are secure on the cylinder head.

When installing, secure all cable ties back to same positions.

Close the open channels from the intake tube and exhaust tract with suitable plugs from the Engine Bung Set:VAS 6122 .

Cover the opening of the transmission with a cleaning cloth, so that no coolant enters the clutch housing.

-- Remove the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Remove the turbocharger air duct pipe/charge air cooler. Refer to TURBOCHARGER AIR DUCT PIPE/CHARGE AIR COOLER, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the fan shroud. Refer to FAN SHROUD, REMOVING AND INSTALLING .

-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

-- Reinstall the engine support and engine mount and tighten the bolts hand-tight.

-- Disengage the Engine Support Bridge:10 - 222 A spindles.

-- Remove the front exhaust pipe with catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .

-- Remove the Oxygen Sensor 1 before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 before Catalytic Converter -GX10-, REMOVING AND INSTALLING .

-- Loosen the hose clamp -arrow- and remove the right charge air hose -1-.

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-- Seal the open lines and connections with clean plugs from the Engine Bung Set:VAS 6122 .

-- Loosen the hose clamp -2-.

Fig 1: Disconnect Charge Air Pressure Sensor Connector

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-- Free up the coolant hose -3-.

-- Remove the bolts -arrows-.

-- Disconnect the connector -1- from the Charge Air Pressure Sensor -G31- and remove the right air duct pipe.

-- Loosen the hose clamps -arrows- and remove the coolant hoses.

Fig 2: Identifying Clamps And Coolant Hoses

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-- Pivot the coolant line -1- to the side.

-- Disconnect the connectors:

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1 -

For the Oil Pressure Switch -F1-

2 -

For the Reduced Oil Pressure Switch -F378-

5 -

For the Piston Cooling Nozzle Control Valve -N522-

-- Remove the bolts -arrows- for the coolant pipe -2-.

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-- Remove the bolt -1- and the nut -3- and then remove the bracket -2- for the intake manifold.

Fig 3: Identifying Bolt And Nut

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-- Disconnect the connectors:

Fig 4: Disconnect Connectors

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For the Throttle Valve Control Module -GX3-
For the Intake Manifold Sensor -GX9-
For the Fuel Pressure Sensor -G247-

-- Remove the connector -4- from the bracket.

-- Free up the wiring harness and push it to the side.

-- Remove the connector -3- for the Knock Sensor 1 -G61- from the bracket and disconnect it.

Fig 5: Knock Sensor Connector Locations

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-- Disconnect the connectors -2 and 4-.

-- Loosen the hose clamp -1- and remove the coolant hose.

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-- Disconnect the connector -2-.

-- Remove the bolts -arrows- and nut -1-.

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-- Remove the heat shield -2-.

-- Remove the bolt -1-. Only loosen the bolt -3-.

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-- Remove the turbocharger bracket -2-.

-- Remove the nuts -arrows-.

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-- Remove the turbocharger from the cylinder head and tie up toward the rear.

-- Remove the bolts -arrows-.

Fig 6: Cylinder Head Loosening Sequence

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-- Remove the cylinder head bolts in the sequence -1 to 10-.

NOTE:

Make sure all wires and cables are disconnected.

-- Remove the cylinder head and place it on a soft surface (foam).