Center Differential Housing And Center Differential, Bolted Driveshaft: Installing

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Install in reverse order of removal. Note the following:

Tightening specifications, refer to CENTER DIFFERENTIAL HOUSING OVERVIEW, BOLTED DRIVESHAFT .

NOTE:

Replace the bolts for the center differential housing.

-- Clean both housing separating surfaces thoroughly. They must be free of oil and grease.

-- Apply a bead sealant -arrow 1- evenly and not too thick on the housing surfaces;

Fig 1: Applying Sealant Bead On Housing Surface

Courtesy of AUDI OF AMERICA, LLC

-- Place a sealing ring round each bolt hole to prevent contact corrosion -arrow 2-.

-- Coat the gear carrier surfaces with transmission fluid MTF.

-- Make sure the spacer sleeve -2- and the shim -1- are mounted on the output shaft.

Fig 2: Ensuring Spacer Sleeve And Shim Are Mounted On Output Shaft

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-- Coat both outer ring surfaces on the gear carrier slightly with MTF.

Fig 3: Identifying Gear Carrier -Arrow A- Must Fit Into Opening In Transmission Intermediate Housing -Arrow B-

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-- Insert the gear carrier.

Installed position: The tab on the gear carrier -arrow A- must fit into the opening in the transmission intermediate housing -arrow B-.

-- Place the center differential -2- on the transmission -1-.

Fig 4: Installing Plate Spring -5-, Adjusting Shim(S) -4- And Pressure Spring -3- In Center Differential Housing -6-

Courtesy of AUDI OF AMERICA, LLC

-- Install the pressure spring -3- into the center differential.

-- Attach the plate spring -5- and shim(s) -4- in the center differential housing -6- with a little grease.

Plate spring installation location: The side rounded on the outside faces the flange shaft.

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

Fig 5: Tightening Specification And Sequence, Center Differential Housing - Bolted Driveshaft

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the center differential housing bolts. Refer to Figure.

-- Install the transmission, refer to Removal and Installation

NOTE:

Check the vehicle data label or the designation on the rear final drive itself to determine which one is installed in the vehicle. Then select the correct rear final drive repair information.

-- Install the driveshaft (bolted), refer to the corresponding "Rear Final Drive" repair information: Refer to the appropriate service information .

-- Fill with (MTF, refer to General Information .