Variable Valve Timing Cover / Housing: Service and Repair

Sealing Flange, Transmission Side

Special tools, testers and auxiliary items required

• Guide Sleeve (T20097)

• Hand Drill with Plastic Brush Attachment

• Protective Eye wear

• Silicone Sealant (D 174 003 A2)

Requirement

• The dual mass flywheel is removed. Refer to => [ Dual Mass Flywheel ] Dual Mass Flywheel or the drive plate is removed. Refer to => [ Drive Plate ] Service and Repair.

Removing

- Unhook the intermediate plate at the sealing flange and at the alignment sleeves - arrows -.






- Remove the sealing flange bolts - 1 through 8 -






- Remove the sealing flange.

Installing

• Note the expiration date of the silicone sealant.

• The sealing flange must be installed within 5 minutes after application of the silicone sealant.

• The sealant bead may not be thicker than specified, otherwise the excess sealant could enter the oil pan and clog the oil suction pipe.

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

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

Wear protective eye wear.

- Remove any remaining sealant on the sealing flange using, for example, a rotating plastic brush.






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

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






- Apply the silicone sealant to the clean sealing surface on the sealing flange as illustrated.






• Thickness of sealant bead: 2 to 3 mm

- Install the guide sleeve (T20097) on the crankshaft journal.






- Slide the sealing flange onto the crankshaft journal and guide sleeve (T20097).

- Install and tighten the bolts - 1 through 8 - in sequence:






- 1. Tighten the bolts hand tight.

- 2. Tighten the bolts to 9 Nm.

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