Lower Timing Chain Cover, Removing And Installing

Special tools and workshop equipment required 

• Hand drill with plastic brush attachment
• Protective eyewear
• Sealant

Removal

Proceed as follows:

-- Removal engine, refer to ENGINE, REMOVAL .

-- Separate the engine and transmission. For vehicles with a manual transmission, refer to ENGINE AND MANUAL TRANSMISSION, SEPARATING . For vehicles with an automatic transmission, refer to ENGINE AND AUTOMATIC TRANSMISSION, SEPARATING .

-- Secure the engine on the engine and transmission holder, refer to ENGINE, SECURING ON ENGINE AND TRANSMISSION HOLDER .

-- On vehicle with manual transmission, remove dual mass flywheel, refer to DUAL MASS FLYWHEEL, REMOVING AND INSTALLING .

-- On a vehicle with automatic transmission, remove drive plate, refer to DRIVE PLATE, REMOVING AND INSTALLING .

-- Remove the oil pan, refer to OIL PAN, REMOVING AND INSTALLING .

-- Remove timing chain lower cover bolts -1 and 2-.

Fig 1: Identifying Sealing Flange Bolts

Courtesy of AUDI OF AMERICA, LLC

Press the crankshaft shaft seal out of the lower timing chain cover.

Fig 2: Cleaning Remaining Sealant With Rotating Plastic Brush

Courtesy of AUDI OF AMERICA, LLC

• Tightening specification, refer to Figure.

-- Remove remaining sealant on lower timing chain and cylinder head covers and cylinder block, e.g, with a rotating plastic brush.

-- Clean sealing surfaces, must be free of oil and grease.

-- Clean holes -arrow- in cylinder head seal of old sealant.

Fig 3: Cleaning Holes -Arrow- In Cylinder Head Gasket Of Old Sealant

Courtesy of AUDI OF AMERICA, LLC

Fig 4: Bending End Of Cylinder Head Gasket Down Slightly

Courtesy of AUDI OF AMERICA, LLC

-- Bend end of cylinder head seal down slightly -arrows- until upper sealing surface on cylinder head seal and cylinder head can be cleaned.

-- Clean top and bottom of cylinder head seal, it must be free of oil and grease.

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

Fig 5: Cut Tube Nozzle At Front Marking

Courtesy of AUDI OF AMERICA, LLC

Fig 6: Bending End Of Cylinder Head Gasket Down Slightly

Courtesy of AUDI OF AMERICA, LLC

-- Lightly coat top and bottom cylinder head seal sealing surfaces with lubricant by bending seal down slightly again -arrows-.

-- To coat surface between cylinder head and seal, use a flat object, e.g. a feeler gauge.

-- Place a thin sealant beat -arrows- from below in both corners between cylinder head seal and cylinder block so that cylinder head seal holes are filled.

Fig 7: Identifying Sealant Locations For Corners Of Cylinder Block/Cylinder Head

Courtesy of AUDI OF AMERICA, LLC

-- Check whether timing chain lower cover guide pins are inserted in cylinder block.

Fig 8: Identifying Sealing Surfaces

Courtesy of AUDI OF AMERICA, LLC

-- Lightly coat clean sealing surfaces -shaded- on timing chain lower cover with sealant.

-- Tighten timing chain lower cover bolts -1- and -2-, refer to Figure.

Fig 9: Identifying Sealing Flange Bolts

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal. Note the following:

-- Install the crankshaft seal on the transmission side, refer to CRANKSHAFT SEAL, REMOVING AND INSTALLING .

-- Install the oil pan, refer to OIL PAN, REMOVING AND INSTALLING .

-- On vehicle with manual transmission, install dual mass flywheel, refer to DUAL MASS FLYWHEEL, REMOVING AND INSTALLING .

-- On a vehicle with automatic transmission, install drive plate, refer to DRIVE PLATE, REMOVING AND INSTALLING .

-- Install the engine, refer to ENGINE, INSTALLATION .