Center Differential Housing: Notes

Special tools and workshop equipment required 

• Thrust Plate VW 401
• Thrust Plate VW 402
• Thrust Disc VW 412
• Tube 60 mm Dia. VW 415 A
• Press Tube 30 - 100
• Press Tube 2040
• Thrust Piece T40165
• Thread Locking Compound AMV 185 101 A1
• Sealing Grease G 052 128 A1

Fig 1: Identifying Center Differential Housing

Courtesy of AUDI OF AMERICA, LLC

1. Center Differential
   • Service by manufacturer only
2. Spring
3. Adjustment Shim
4. Plate Spring
   • Installed position: the camber on the inner diameter faces toward the flange shaft
5. Spacer Sleeve
   • Removing INSTALLING THE FLANGE SHAFT BALL BEARING AND SPACER SLEEVE 
   • Installing REMOVING THE FLANGE SHAFT BALL BEARING AND SPACER SLEEVE 
6. Securing Ring
   • For flange shaft
   • Removing and installing, refer to REMOVE THE CIRCLIP -ARROW-. 
7. Ball Bearing
   • For flange shaft
   • Removing INSTALLING THE FLANGE SHAFT BALL BEARING AND SPACER SLEEVE 
   • Installing REMOVING THE FLANGE SHAFT BALL BEARING AND SPACER SLEEVE 
8. Shaft Seal
   • Prying out PRYING OUT THE SHAFT SEAL -1- 
   • Installing INSTALLING THE SEAL FOR THE REAR FLANGE SHAFT 
9. Rear Flange Shaft
   • Without vibration damper
   • Allocate components shims.
   • Removing PRESSING OUT FLANGE SHAFT 
   • Installing PRESSING IN FLANGE SHAFT 
10. Rear Flange Shaft
    • With vibration damper
    • Allocate components shims.
    • Removing PRESSING OUT FLANGE SHAFT 
    • Installing PRESSING IN FLANGE SHAFT 
11. Bolt
    • 15 Nm plus an additional 90° turn
    • For vibration damper
    • Quantity: 3
    • Insert with locking fluid AMV 185 101 A1
12. Vibration Damper
    • Not present on all versions
    • Allocate according to transmission code.
13. Center Differential Housing
    • Removing and installing with transmission installed, refer to REMOVAL AND INSTALLATION