Cylinder Head, Removing And Installing: Installing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2020 Audi A4 allroad, 2020 Audi A4 Quattro, 2019 Audi A4 allroad, 2019 Audi A4 Quattro, and 2018 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

There is a risk of damaging the sealing surfaces if handled incorrectly.

- Carefully remove the sealant residue from the cylinder head and cylinder block.

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.
Secure all hose connections with hose clamps that match the ones used in series production. Refer to the Parts Information.
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.
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.
When replacing the cylinder head or cylinder head gasket, replace all of the coolant and engine oil.

-- Carefully remove the sealant residue from the cylinder head and cylinder block.

-- Make sure that no long grooves or scratches result.

-- Carefully remove all lapping and sanding residue.

-- Clean oil and coolant residue out of the blind holes for the cylinder head bolts in the cylinder block

-- Position the cylinder head gasket.

Fig 1: Identifying Centering Pins

Courtesy of AUDI OF AMERICA, LLC

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.

When turning the crankshaft pay attention that no components are not damaged by the timing chain.

-- Position the cylinder head.

-- Install and tighten the cylinder head bolt.

TIP:

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

Further installation is performed in reverse order of removal, while noting the following:

-- Turn the crankshaft using the : T40263 , : T40314 and the 24 mm socket in direction of -arrow- until the vibration damper is at "TDC".

Courtesy of AUDI OF AMERICA, LLC

The notch -1- on the vibration damper must align with the arrow marking -2- on the lower timing chain cover.
The mark on the lower timing chain cover is located in the >>four-o'clock position<<.

-- Install the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, REMOVING AND INSTALLING .

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

-- Follow all steps after connecting the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

-- 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 .

There are additional procedures depending on the model. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .