Cylinder Head: Removing
-- Drain the coolant, refer to COOLANT, DRAINING AND FILLING .
-- Remove the camshafts, refer to CAMSHAFT .
Risk of damaging valves and piston crowns.
- Do not turn the crankshaft if the camshaft has been removed.
-- Remove the catalytic converter, refer to CATALYTIC CONVERTER WITH FRONT EXHAUST PIPE .
-- Remove the Heated Oxygen Sensor -G39-, refer to HEATED OXYGEN SENSOR .
-- Loosen the hose clamp -3- and -5-.
-- Disconnect the connector from the Charge Air Pressure Sensor -G31- -arrow-.
-- Remove the bolts -1- and -4- and then remove the air guide pipe downward.
-- Seal the open lines and connections with clean plugs from the Engine Bung Set VAS 6122.
-- Loosen the clamps -arrows- and remove the coolant hoses.
-- Swing the coolant line -1- to the side.
-- Disconnect the connectors -arrow- for the Oil Pressure Switch - F1- -3-.
-- Disconnect the connectors -arrow- for the Reduced Oil Pressure Switch -F378- -2-.
-- Remove the bolts -arrows-.
-- Remove the bolt -1- and the nut -3- and then remove the bracket -2- for the intake manifold.
-- Disconnect the connectors:
- For the Throttle Valve Control Module -J338-
- For the Intake Air Temperature Sensor -G42- /Manifold Absolute Pressure Sensor -G71-
-- Remove the connector -4- from the bracket.
-- Free up the wiring harness and push it to the side.
-- Loosen the hose clamp -3- and -5-.
-- Disconnect the connector from the Charge Air Pressure Sensor -G31- -arrow-.
-- Remove the bolts -1- and -4- and then remove the air guide pipe downward.
-- Disconnect the connectors -1, 2 and 3- underneath the intake manifold.
-- Remove the turbocharger, refer to TURBOCHARGER .
-- Remove the bolts -arrows-.
-- Remove the cylinder head bolts in the sequence -1 to 10-.
Make sure all wires and cables are disconnected.
Pay attention to the tension and guide tracks when lifting the cylinder head.
-- Remove the cylinder head.
-- Lay the cylinder head on a soft surface, such as foam.