Cylinder Head, Removing And Installing: Removing

WARNING: This page is about a different variant/trim than selected.

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 and exhaust tract with suitable plugs from the : VAS6122 .

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

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

Fig 1: Identifying Air Guide Pipe

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-- Remove the bolts -arrows-.

-- Remove the air duct pipe by lifting the clip -2- and opening the screw-type clamp -3-.

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

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

-- Disengage the spindles of the : 10-222A .

-- Remove the catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .

-- Remove the Heated Oxygen Sensor -G39-. Refer to HEATED OXYGEN SENSOR .

-- Loosen the hose clamps -3 and 5-.

Fig 2: Identifying Senors And Clamps

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-- Disconnect the connector from the Charge Air Pressure Sensor -G31- -arrow-.

-- Remove the bolts -1 and 4- and then remove the air duct pipe downward.

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

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

Fig 3: 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-.

Fig 4: Locating Air Guide Pipe Bolts

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

Fig 5: Identifying Bolt And Nut

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-- Disconnect the connectors:

Fig 6: Disconnect Connectors

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For the Throttle Valve Control Module -J338-
For the Intake Air Temperature Sensor - G42- /Manifold Absolute Pressure Sensor - G71-
For the Fuel Pressure Sensor -G247-

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

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

-- Loosen the hose clamps -3 and 5-.

Fig 7: Identifying Senors And Clamps

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-- Disconnect the connector from the Charge Air Pressure Sensor -G31- -arrow-.

-- Remove the bolts -1 and 4- and then remove the air duct pipe downward.

-- Disconnect the connectors -1, 2 and 3- underneath the intake manifold.

Fig 8: Connectors

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-- Disconnect the connectors and free up the wires.

Fig 9: Disconnecting Knock Sensor Connectors

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For the Intake Manifold Runner Control Valve -N316-
For the Transmission Coolant Valve -N488-
For Engine Coolant Temperature Sensor -G62-
For the Oil Pressure Switch, Level 3 -F447-

-- Remove the bolts -arrows-.

-- Remove the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Remove the bolts -arrows-.

Fig 10: 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.

Pay attention to the tension and guide rail when lifting the cylinder head.

-- Remove the cylinder head.

-- Lay the cylinder head on a soft surface, such as foam.