Upper Timing Chain Covers, Removing And Installing: Installing

WARNING: This page is about a different car, the 2022 Audi SQ7. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove any old sealant from the sealing surfaces.

To prevent contamination of the lubricating system with sealant residue, place a clean cloth over the open part of the oil pan.

Fig 1: Cleaning Sealing Surfaces
Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of injuring the eyes from sealant residue.

- 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.

Be sure to check the expiration date of the sealant.

Fig 2: Cut Tube Nozzle At Front Marking
Courtesy of AUDI OF AMERICA, LLC

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

CAUTION:

There is a risk that the lubrication system could be blocked by excess sealant.

- Do not apply sealant bead thicker than indicated.

Sealant bead thickness: 3.0 mm

-- Apply the sealant bead -arrow- on the clean sealing surface of the cylinder bank 1 timing chain cover (right).

Courtesy of AUDI OF AMERICA, LLC

-- Apply the sealant bead -arrow- on the clean sealing surface of the cylinder bank 2 timing chain cover (left).

Courtesy of AUDI OF AMERICA, LLC

Install the timing chain cover within five minutes after applying the sealant.

-- Push the timing chain cover carefully on the alignment sleeves on the cylinder head but do not press on the sealant bead.

The sealant must not get into the threaded holes.

-- Install all bolts for the timing chain cover first by hand and then tighten.

Install in reverse order of removal. Note the following:

-- Install the rear fuel line. Refer to HIGH PRESSURE PIPE, INSTALLING .

Additional procedures depending on the model: TIMING CHAIN COVER, REMOVING AND INSTALLING .