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

Tightening Specifications; refer to TIGHTENING SPECIFICATIONS .

-- Remove any old sealant from the surfaces.

Fig 1: Cleaning Sealing Surfaces

Courtesy of AUDI OF AMERICA, LLC

-- 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

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

• Sealant bead thickness: 2.5 mm

-- Position the left timing chain cover and tighten the bolts.

Fig 4: Left Timing Chain Cover Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Position the right timing chain cover and tighten the bolts.

Fig 5: Right Timing Chain Cover Bolts

Courtesy of AUDI OF AMERICA, LLC

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

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

-- Install the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .