Left Timing Chain Cover, Removing And Installing: Installing

WARNING: This page is about a different car, the 2015 Audi S7, 2015 Audi RS 7, 2014 Audi S7, 2014 Audi RS 7, and 2013 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Replace the O-rings.

-- Remove any old sealant from the surfaces.

CAUTION:

Risk of contaminating the lubricating system.

Cover open parts of engine.

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 timing chain cover -1- and cylinder head using a rotating plastic brush, for example.

-- 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).

-- Remove the intermediate pipe -2- from the left timing chain guard with the needle bearing drift.

Fig 3: Driving Left Coolant Intermediate Pipe Out Of Left Timing Chain Cover With Suitable Drift

Courtesy of AUDI OF AMERICA, LLC

-- Install the O-rings -1- in the intermediate pipe.

-- Insert the intermediate pipe into the left timing chain cover.

CAUTION:

The lubrication system could be plugged with excess sealant.

Do not apply sealant bead thicker than indicated.

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

Thickness of sealant bead: 2.5 mm.

NOTE:

The timing chain cover must be installed within 5 minutes after applying the sealant

-- Install the left timing chain cover with the bracket -arrow- and tighten the bolts, refer to Figure.

Fig 4: Left Timing Chain Cover Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

A double bolt is attached at -1-.

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

-- Install the upper rear coolant pipe, refer to OVERVIEW - COOLANT PIPES .

-- Fill the refrigerant circuit, refer to Refrigerant System - with Refrigerant R134a.

-- Install the plenum chamber bulkhead, refer to Bulkhead .

-- Install the catalytic converter and the front muffler, refer to OVERVIEW - MUFFLER .

NOTE:

Do not reuse used coolant.

-- Fill the coolant, refer to COOLANT, DRAINING AND FILLING => Filling .