Oil Pan Upper Section, Removing And Installing: Installing

• Replace the bolts that were tightened with an additional turn after removing them.
• Replace the oil baffle after removal.

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

-- Remove the remaining sealant on the oil pan upper section and on the lower timing chain cover -1-, for example with a rotating plastic brush.

Fig 1: Cleaning Sealing Surfaces

Courtesy of AUDI

• Check if the timing chain cover is deformed. Then mount the oil pan upper section without any sealant and check the gap between the cover and the oil pan upper section. If deformation is determined and the cover cannot be aligned, replace the cover after installing the oil pan upper section.

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

-- Check for contamination in the oil passages in the oil pan upper section and in the crankshaft housing.

TIP:

Fig 2: Cut Tube Nozzle At Front Marking

Courtesy of AUDI

Be sure to check the expiration date of the sealant.

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

• Sealant bead thickness: 2 to 3 mm.
  Fig 3: Applying Silicone Sealant D 174 003 A2- And Sealing Surface Of Upper Oil Pan

  Courtesy of AUDI
• The sealant bead may not be thicker than specified, otherwise excess sealant could enter the oil pan and clog the oil intake pipe screen.

-- Apply sealant to the clean sealing surfaces on the oil pan upper section -arrow- as shown.

-- Apply sealant between the cylinder block and the lower timing chain cover -arrows-.

Fig 4: Applying Silicone Sealant

Courtesy of AUDI

• The oil pan upper section must be installed within five minutes after the application of sealant.
• On the transmission side, the oil pan upper section and the cylinder block must be flush.

-- Immediately attach the oil pan upper section and tighten the bolts.

-- Install the bolts -arrows-. Tightening specifications. Refer to -item 18- OVERVIEW - TIMING CHAIN COVER, ENGINE WITH TWO CAMSHAFT ADJUSTERS .

Fig 5: Identifying Bolts

Courtesy of AUDI

Install in reverse order of removal. Note the following:

-- Install the sealing flange on the transmission side. Refer to SEALING FLANGE, REMOVING AND INSTALLING, TRANSMISSION SIDE .

-- Install the oil pump. Refer to OIL PUMP, REMOVING AND INSTALLING .

There are additional procedures depending on the model. Refer to OIL PAN UPPER SECTION, REMOVING AND INSTALLING .