Cylinder Head, Removing And Installing: Installing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2017 Audi S3, 2017 Audi RS 3, 2017 Audi A3 Quattro, 2016 Audi S3, and 2016 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Carefully remove the sealant residue from the cylinder head and cylinder block.
Make sure that no long grooves or scratches result.
There must be no oil or coolant in the blind holes for the cylinder head bolts in the cylinder block.
Carefully remove all lapping and sanding residue.
Only unpack the new cylinder head gasket immediately before installing.
To prevent the cylinder head gasket silicone layer and recessed area from being damaged, always handle the gasket extremely carefully.
If a replacement cylinder is installed, only remove the plastic base right before cylinder head is installed to protect open valves.
Replace the bolts that were tightened with an additional turn after removing them.
Replace the self-locking nuts, gaskets, seals and O-rings after removal.
When installing a replacement cylinder head, the contact surfaces between the roller rocker lever and cam running surface need to be oiled before the cylinder head cover can be installed.
Secure all hose connections with hose clamps that match the ones used in series production. Refer to the parts information.
When replacing the cylinder head or cylinder head gasket, replace all of the coolant and engine oil.

-- Check whether the centering pins -arrows- are inserted in cylinder block.

Courtesy of AUDI OF AMERICA, LLC

-- Position the cylinder head gasket.

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 another 90° counter-clockwise out of "TDC".

-- Position the cylinder head.

-- Insert the cylinder head bolts and tighten by hand.

-- Cylinder head tightening sequence. Refer to Figure.

TIP:

It is not required to retighten the cylinder head bolts after repairs.

Remove the engine mount and engine supports from the vehicle if they were reinstalled.

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

-- Install the spark plugs. Refer to OVERVIEW - IGNITION SYSTEM .

-- Change the engine oil. Refer to ENGINE OIL .

-- Change The Coolant. Refer to COOLANT, DRAINING AND FILLING [CNSB, CNTC, CYFB] (DI - 1.8L/2.0L) / COOLANT, DRAINING AND FILLING WITHOUT COOLING SYSTEM CHARGE KIT - ELECTRIC VACUUM PUMP:VAS6096/2 (TDI - 1.6L/2.0L) .

There are additional procedures depending on the model. Refer to CYLINDER HEAD, REMOVING AND INSTALLING [CNSB, CNTC, CYFB] (DI - 1.8L/2.0L) / CYLINDER HEAD .