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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Cylinder Head, VALVETRAIN- CEUC, CRDB, CTGE, CWUB, CWUC) >> Cylinder Head, VALVETRAIN >> Cylinder Head >> Cylinder Head, Removing And Installing >> Cylinder Head, Installing >> Procedure

Cylinder Head, Installing: Procedure

WARNING: This page is about a different car, the 2018 Audi S6, 2017 Audi S6, and 2016 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

The sealing surfaces could be damaged.

  • Carefully remove sealant residue from cylinder head and cylinder block.
  • Make sure that no long scrapes or scratches result.

Risk of damaging cylinder block.

  • No oil or coolant must be in the cylinder head bolt blind holes in the cylinder block.

Risk of leaks in cylinder head seal.

  • Carefully remove sealant residue from cylinder head and cylinder block. Make sure that no long scrapes or scratches result.
  • Carefully remove all grinding and sanding residue.
  • Only unpack new cylinder head gasket immediately prior to installation.
  • To prevent cylinder head seal silicone layer and recessed area from being damaged, always handle seal extremely carefully.

Risk of damaging open valves.

  • If a replacement cylinder is installed, only remove plastic base right before cylinder head is installed to protect open valves.

Risk of damaging valves and piston heads after working on valve train.

  • To ensure valves do not strike pistons when starting, carefully rotate engine at least two full revolutions.
NOTE:

Replace any bolts that were tightened with an additional turn.

Replace seals, gaskets and O-rings.

When installing a replacement cylinder head, coat the contact surfaces between the hydraulic adjusting elements, the roller rocker levers and the cam running surfaces with oil.

Secure all hose connections with hose clamps appropriate for the model. Refer to parts information.

It is necessary to replace all the coolant and engine oil whenever the cylinder head or the cylinder head gasket are replaced.

NOTE:

The cylinder head for cylinder bank 2 (left) is shown in the illustration.

GWWA15-10228Courtesy of AUDI OF AMERICA, LLC

-- If there are no alignment bushings -arrows- at the locations marked in the cylinder block, insert them.

-- Install the cylinder head gasket on the alignment bushings in the cylinder block.

-- Set cylinder head in place.

-- Install the cylinder bolts by all the way in by hand.

-- Tighten the cylinder head bolts. .

NOTE:

There is no requirement to tighten the cylinder head bolts after repairs.

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