Procedures

Removing and installing crankshaft sealing ring

Engine installed (transmission side)

Pre-operations: Transmission removal




Tools

Removal

1. Remove clutch and flywheel (manual transmission) or drive plate (Tiptronic).





2. Fasten toothed segment (special tool 9538/1) on the crankcase half (cylinder bank 1 - 3) with hexagon-head bolt M12 x 50.
3. Detach thrust plate.

Note: In order to avoid deformation of the thrust plate housing, always loosen screws in several stages and in diametrically opposite sequence.

4. Remove thrust plate and drive plate.
5. Detach flywheel (Torx T55) and remove.





6. Drill sealing ring on face side, use [diameter] 3 mm drill. Grease drill.
7. Screw sheetmetal screws (5.0 x 20) with washer approximately 5 mm into the bore.





8. Pull out sealing ring with extractor 3237.
9. Clean crankshaft journal and crankcase bore thoroughly. Remove any sharp edges which may be present.

Installation

Note: The tools should always be examined for burred spots before assembly of a sealing ring. Check all surfaces over which the sealing ring is pushed. Even minor damage to the tool can damage the micro sealing lips of the new sealing ring.





1. Remove any burred spots with a nail file, then pull off with a fine abrasive or polishing cloth.
Illustration shows rounded edges on the 13590005 recesses in the centering piece.





Illustration shows surrounding edge of 13590004 centering piece. The surrounding edge must not be damaged.
2. Fasten assembly sleeve of special tool 9609.
3. Lubricate crankshaft journal and assembly sleeve.

Note: The micro sealing lip of the sealing ring must neither be touched by hand nor lubricated.





4. Put on sealing ring by hand. Do not lubricate outer diameter of sealing ring, do not use sealant, it must be fitted dry.





5. Fit crankshaft sealing ring. Insert sealing ring as far as it will go using the insertion tool, which consists of the special tools 9609 and 9609/1.