Lower Timing Chain Cover, Replacing: Installing

WARNING: This page is about a different variant/trim than selected.

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

-- To prevent contamination of the lubricating system with sealant residue, place a clean cloth over the 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

TIP:

Fig 2: Cut Tube Nozzle At Front Marking

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Be sure to check the expiration date of the sealant.

-- Cut the tube nozzle at the front marking (nozzle diameter: about 3 mm).

Cover with 15 Bolts

Fig 3: Identifying Silicon Sealing Compound

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

Cover with Eight Bolts

Fig 4: Identifying Silicon Sealing Compound

Courtesy of AUDI OF AMERICA, LLC

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

Continuation

Sealant bead thickness: 2 to 3 mm.
The sealant bead may not be thicker than specified, otherwise excess sealant could enter the oil pan and clog the oil intake pipe screen.
The cover must be installed within five minutes after the sealant has been applied.

-- Immediately attach the cover and tighten the bolts.

Tighten the bolts -arrows- with an additional turn after installing the vibration damper. The bolts must be removed again to install the vibration damper.

Fig 5: Locating Timing Chain Cover Bolts
Courtesy of AUDI OF AMERICA, LLC
After installing the cover, allow the sealant to harden for approximately 30 minutes. Only afterward may the engine oil be replenished.

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

-- Install the vibration damper. Refer to VIBRATION DAMPER, 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 .

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