Control Housing Cover

Sealing Flange, Transmission Side

Special tools, testers and auxiliary items required

• Hand Drill with Plastic Brush Attachment

• Protective Eye wear

• Silicone Adhesive Sealant (D 176 501 A1)

Removing

- Remove the drive plate. Refer to => [ Drive Plate ] Drive Plate.

- Remove the oil pan. Refer to => [ Oil Pan ] Oil Pan.

- Remove the sealing flange bolts - 1 and 2 -.






The cylinder head gasket could be damaged. The cylinder head gasket can kink if it is bent too much. A kinked cylinder head gasket must be replaced.

- Remove the sealing flange bolts and flange from the cylinder block horizontally.

- Press the seal out of the sealing flange.

Installing

• For the correct tightening specifications, refer to => [ Cover and Sealing Flange Overview ] Cover and Sealing Flange Overview.

Risk of contaminating the lubrication system with sealant residue. Carefully cover the exposed parts of the engine in order to prevent any sealant residue from falling in.

- Using a rotating plastic brush, remove any remaining sealant from the sealing flange and cylinder block sealing surfaces. Wear protective eye wear.






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

- Clean the holes - arrow - in the cylinder head gasket of old sealant.






• With the cylinder head installed, the holes in the cylinder head gasket are only half visible.

The cylinder head gasket could be damaged. The cylinder head gasket can kink if it is bent too much. A kinked cylinder head gasket must be replaced.

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






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

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






- Lightly coat the top and bottom of the cylinder head gasket with lubricant by bending the gasket down slightly again - arrows -.






- To coat the surface between the cylinder head and gasket, use a flat object, for example, a feeler gauge.

- Place a thin sealant bead - arrows - from below, in both corners between the cylinder head gasket and cylinder block so that the cylinder head gasket holes are filled.






- Make sure the sealing flange alignment sleeves are installed in the cylinder block.

- Apply silicone adhesive sealant (D 176 501 A1) onto the sealing flange as shown.






• The sealing flange must be installed within 5 minutes of applying the sealant.

- Tighten the sealing flange bolts in 3 stages as follows:






A Tighten the bolts - 1 - to 5 Nm.
B Tighten the bolts - 2 - to 23 Nm.
C Tighten the bolts - 1 - to 10 Nm.

Further installation is in the reverse order of removal paying attention to the following:

- Install the crankshaft seal. Refer to => [ Crankshaft Seal, Transmission Side ] Crankshaft Seal, Transmission Side.

- Install the oil pan. Refer to => [ Oil Pan ] Oil Pan.

- Install the drive plate. Refer to => [ Drive Plate ] Drive Plate.