Left And Right Timing Chain Cover, Removing And Installing: Installing

WARNING: This page is about a different car, the 2015 Audi A7 Quattro, 2014 Audi A7 Quattro, 2013 Audi A7, and 2012 Audi A7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Replace any bolts that were tightened with an additional turn.

Replace the O-rings.

CAUTION:

Risk of contaminating the lubricating system.

Cover open parts of engine.

-- Remove any old sealant from the surfaces.

Fig 1: Cleaning Sealing Surfaces

Courtesy of AUDI OF AMERICA, LLC

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Remove the sealant residue on the covers for the timing chain -1-, cylinder block and cylinder head with a rotating plastic brush.

-- Clean any oil or grease off the sealing surfaces.

NOTE:

Note the expiration date of the sealing compound.

Fig 2: Cutting Tube Nozzle At Front Marking (Nozzle Diameter Approx. 1 Mm)

Courtesy of AUDI OF AMERICA, LLC

-- Cut the tube nozzle at the front marking (nozzle diameter: about 2 mm).

Fig 3: Applying Sealant Bead On Clean Sealing Surfaces Of Left Cover For Timing Chain

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

The lubrication system could be plugged with excess sealant.

Do not apply sealant bead thicker than indicated.

-- Apply the sealant bead -arrow- to the clean sealing surfaces on the left timing chain cover as shown in the illustration.

Thickness of sealant bead: 2.5 mm.

NOTE:

Covers for timing chain must be installed within 5 minutes after applying sealant.

-- Position the left timing chain cover and tighten the bolts, refer to Figure.

Fig 4: Identifying Left Timing Chain Cover Bolt, Tightening/Loosening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Position the right timing chain cover and tighten the bolts, refer to Figure.

Fig 5: Identifying Right Timing Chain Cover Bolt, Tightening/Loosening Sequence

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal. Note the following:

-- Install the secondary air injection combination valve. For the left, refer to LEFT COMBINATION VALVE, REMOVING AND INSTALLING and for the right, refer to RIGHT COMBINATION VALVE, REMOVING AND INSTALLING .