Installing The Center Differential And Housing: Notes

Tightening specifications, refer to CENTER DIFFERENTIAL AND CENTER DIFFERENTIAL HOUSING OVERVIEW 

-- Thoroughly clean both housing joint surfaces.

Install the gear carrier on the transmission as follows:

• Installed position: The tab on the gear carrier -arrow A- must be inserted into the opening -arrow B- in the transmission housing.
  Fig 1: Coating Both Surfaces On Gear Carrier Slightly With Transmission Fluid

  Courtesy of AUDI OF AMERICA, LLC

-- Slide the center differential -2- all the way in direction of the gear carrier -1-.

Fig 2: Sliding Center Differential -2- All Way In Direction Of Gear Carrier -1-

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-- Install the plate spring -5-, the adjusting shim(s) -4- and the pressure spring -3- in the center differential housing -6-.

• Plate spring installation location -5- : The camber on the inner diameter -arrow- faces toward the center differential housing -6-.

-- Apply sealing paste AMV 188 001 02 evenly and not too thick.

-- Then position the center differential housing -6- on the transmission.

-- Press the center differential housing -B- on until it makes contact with the transmission housing and hold it securely.

Fig 3: Locating Center Differential Housing Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Install and tighten the new bolts -arrows-. Tightening specification CENTER DIFFERENTIAL AND CENTER DIFFERENTIAL HOUSING OVERVIEW .

-- Tighten the bolts -A-. Tightening specification CENTER DIFFERENTIAL AND CENTER DIFFERENTIAL HOUSING OVERVIEW .

-- Tighten the tunnel cross member on the transmission mount -arrows-. Tightening specification TUNNEL CROSSMEMBER, TRANSMISSION MOUNT AND TRANSMISSION SUPPORT OVERVIEW .

Fig 4: Identifying Nuts And Tunnel Crossmember

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-- Hoist the transmission and tighten the tunnel cross member bolts -arrows-. Tightening specification TUNNEL CROSSMEMBER, TRANSMISSION MOUNT AND TRANSMISSION SUPPORT OVERVIEW .

Fig 5: Identifying Bolts & Tunnel Crossmember

Courtesy of AUDI OF AMERICA, LLC

-- Mount or install the driveshaft on the transmission. Refer to DRIVESHAFT, REMOVING FROM REAR FINAL DRIVE or DRIVESHAFT ATTACHED ON TRANSMISSION SIDE .

Fig 6: Identifying Driveshaft Heat Shield

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-- Install the driveshaft heat shield -A- and tighten the bolts -arrows- to tightening specification.

-- Fill transmission oil and check oil level. Refer to MANUAL TRANSMISSION, CHECKING TRANSMISSION FLUID LEVEL .

-- Install the exhaust system and align it without tension. Refer to EXHAUST SYSTEM, EMISSION CONTROLS .

-- Install the rear noise insulation. Refer to NOISE INSULATION .