Cylinder Head, Removing And Installing: Installing
Replace the bolts that were tightened with an additional turn.
Replace the gaskets, seals and self-locking nuts.
The hose supports, air duct pipes and hoses must be free of oil and grease before installing.
Secure all hose connections with standard production hose clamps. Refer to the Parts Information.
Spray the bolts on the used clamps with rust remover before installing.
-- Only unpack the new cylinder head gasket immediately prior to installation. The silicon layer and the cylinder head gasket recessed area must not be damaged.
-- Carefully remove the sealant residue from the cylinder head and cylinder block. At the same time, make sure that no long grooves or scratches result. Carefully remove all grinding and sanding residue.
-- Clean the cylinder head bolt blind holes. If necessary blow out with compressed air.
-- Position the cylinder head gasket.
- Pay attention to centering pins in cylinder block -arrows-.
- Pay attention to the cylinder head gasket installation position: the part number must be readable from the intake side.
-- If the crankshaft was turned in the meantime, bring the piston for cylinder 1 to TDC and then turn the crankshaft back again slightly. Take care not to damage the timing chain at the same time.
-- Position the cylinder head.
-- Insert the cylinder head bolts and tighten by hand.
-- Cylinder head tightening sequence. Refer to Figure.
-- Install the camshaft but the camshaft timing chain is not installed yet. Refer to CAMSHAFT, REMOVING AND INSTALLING .
-- Support the engine in its installation position again. Refer to ENGINE, SUPPORTING IN INSTALLATION POSITION .
-- Remove the engine mount and the engine support.
-- Now install the camshaft timing chain. Refer to Installing the Camshaft Timing Chain .
Further installation is performed in reverse order of removal, while noting the following:
-- Change the engine oil. Refer to ENGINE OIL, DRAINING OR EXTRACTING; REPLACING OIL FILTER AND FILLING ENGINE OIL .
-- Change the coolant. Refer to COOLANT, DRAINING AND FILLING .
-- After installing new parts (engine/partial engine, cylinder head or turbocharger), the oil pressure regulation is to be limited to the high pressure stage for approximately 1000 km, as long as this function is available in the engine control module. From this, the higher friction is taken into account when breaking in new components, and the optimum removal of particles from the initial wear in is ensured.
- If equipped, select the 0001 - Oil pressure for intake function
-- Install the front exhaust pipe with the catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .