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Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Final Drive & Differential - Servicing - 7-Speed Dual Clutch Transmission 0B5 (Sedan) >> 39 Final Drive, Differential >> Center Differential >> Overview - Center Differential Housing >> Overview - Center Differential Housing, Attached Driveshaft

Overview - Center Differential Housing, Attached Driveshaft

Fig 1: Center Differential Housing
GWWA39-10207Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
    • 20 Nm +90°
    • Replacing
  2. Bolt
    • Replacing
    • Aluminum bolts
    • Quantity 11
    • Tightening specification and sequence. See Fig 2.
  3. Housing
  4. Gear Carrier
    • Installed position: The tab must fit into the opening in the transmission intermediate housing
  5. Center Differential
  6. Pressure Spring
  7. Assembly Sleeve
    • Does not have to be installed again
  8. Locking Ring
  9. Locking Ring
  10. Ball Bearing
  11. Bolt
    • Replacing
    • Steel bolts
    • Quantity: 2
    • Tightening specification and sequence. See Fig 2.
  12. Balance Weight
    • Installed depending on the version
  13. Shaft Seal
  14. Dust Ring
    • Replace after removing
  15. Transmission Output Shaft with Splines without Vibration Damper
  16. Transmission Output Shaft with Splines and Vibration Damper
Fig 2: Center Differential Housing Tightening Sequence
GWWA34-10435Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts in eight steps as follows:

Step Bolts Tightening Specification/Additional Turn
1. Aluminum bolts -1- 8 Nm
2. Aluminum bolts -2- Install the bolt hand-tight.
3. Aluminum bolts -1- Loosen again and then install all the way hand-tight
4. Aluminum bolts -3- Install the bolt hand-tight.
5. Steel bolts -4- Install the bolt hand-tight.
6. -1, 2, 3, 4- 10 Nm diagonally
7. Steel bolts -4- 15 Nm
8. -1, 2, 3, 4- 90° additional turn, diagonally