Sealing Flange

Sealing Flange

Special tools, testers and auxiliary items required

• Guide sleeve (T20097)

• Silicone sealant (D 174 003 A2)

• Flat scraper

• Hand drill with plastic brush attachment

• Protective eyewear

Requirements

• Transmission is removed.

• Dual mass flywheel is removed. Refer to --> [ Dual Mass Flywheel ] Dual Mass Flywheel.

Removing

- Unhook the intermediate plate from the sealing flange and remove it from the alignment sleeves - arrows -.





- Remove the bolts - 1 through 8 - and remove the sealing flange.





Installing

• Tightening sequence and specifications, refer to --> [ Transmission Side Sealing Flange, Bolt Tightening Sequence and Specification ] Sealing Flange and Dual Mass Flywheel Assembly Overview.

• Use silicone sealant (D 174 003 A2).

• Note the expiration date of the silicone sealant (D 174 003 A2).

• The sealing flange must be installed within 5 minutes after applying the silicone sealant (D 174 003 A2).

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

CAUTION!
Wear safety glasses.

- Remove the sealant residue on the sealant flange, for example with a rotating plastic brush.





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

- Remove the oil residue on crankshaft end using a clean cloth.

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





- Apply the silicone sealant (D 174 003 A2) to the clean sealing surface of the sealing flange as shown.





• Thickness of sealant bead: 2 to 3 mm

• The sealing flange must be installed within 5 minutes after applying the silicone sealant (D 174 003 A2).

• The sealant bead must not be thicker than specified, otherwise excess sealant could get into the oil pan and clog the strainer in the intake line of the oil pump.

• The (T20097) may only be removed after the sealing flange has been slid onto the crankshaft end.

- Position the (T20097) on the crankshaft end.





- Slide the sealing flange onto the crankshaft end with the (T20097).

- Tighten the bolts:

• Tightening sequence and specification, refer to --> [ Transmission Side Sealing Flange, Bolt Tightening Sequence and Specification ] Sealing Flange and Dual Mass Flywheel Assembly Overview.

• After installing the sealing flange, the sealant must dry for approximately 30 minutes. Only after then may the engine oil be added.

The rest of the assembly is performed in the reverse order of removal.