Lower Timing Chain Cover, Replacing: Installing

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Replace bolts that were tightened with an additional turn after removing them.
Replace the lower timing chain cover and seal after removal.

-- Cover open engine components.

-- Remove any sealant residue on the cylinder block using a flat blade scraper.

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

-- Check that both alignment pins -arrows- for centering the cover are present.

Fig 1: Centering Cover Alignment Bushings

Courtesy of AUDI OF AMERICA, LLC

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 3 mm).

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of engine damage due to excess sealant in the lubrication system.

- Do not apply sealant bead thicker than indicated.

-- Apply the sealant -1- on the clean sealing surface and on the edges -2- of the new cover.

Sealant bead thickness: 2 to 3 mm.
The cover must be installed within five minutes after the sealant has been applied.

-- Immediately attach the cover and tighten the bolts. Refer to Figure.

After installing the cover, allow the sealant to harden for approximately 30 minutes. Only afterward may the engine oil be replenished.

-- Install the vibration damper. Refer to VIBRATION DAMPER, REMOVING AND INSTALLING .

-- Install the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

-- Install the engine support. Refer to ENGINE SUPPORT, REMOVING AND INSTALLING .

-- Fill the engine oil and check the oil level. Refer to ENGINE OIL .