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

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2017 Audi S5, 2016 Audi S5, 2016 Audi S4, 2015 Audi S5, and 2015 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Replace the bolts that were tightened with an additional turn.

Replace the O-rings.

-- Remove any old sealant from the surfaces.

Fig 1: Cleaning Sealing Surfaces

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of contaminating the lubricating system.

Cover open parts of engine.

WARNING:

Danger of eye injury.

Wear protective eyewear.

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

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

NOTE:

Note the expiration date of the sealing compound.

Fig 2: Cut 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 (See Fig 3).

Sealant bead thickness: 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: Left Timing Chain Cover Bolts

Courtesy of AUDI OF AMERICA, LLC

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

Fig 5: Applying Sealant Bead On Clean Sealing Surfaces Of Left Cover For Timing Chain

Courtesy of AUDI OF AMERICA, LLC

Sealant bead thickness: 2.5 mm

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

Fig 6: Right Timing Chain Cover Bolts

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal. Note the following:

NOTE:

Secure all hose connections with hose clamps of the same type as those equipped by the factory.

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