Center Differential Housing, Removing And Installing, Attached Driveshaft: Installing

Install in reverse order of removal. Note the following:

• Tightening specifications, refer to OVERVIEW - 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; sealant.

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).

-- Coat both outer ring surfaces on the gear carrier slightly with transmission fluid (MTF).

Fig 2: Gear Carrier Tab And Transmission Intermediate Housing Opening

Courtesy of AUDI OF AMERICA, LLC

-- 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 3: Center Differential

Courtesy of AUDI OF AMERICA, LLC

-- Mount the guide sleeve -4- on the center differential.

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

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

Fig 4: Center Differential Housing Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the center differential housing bolts, refer to Figure.

-- Install the transmission:

• Audi A4, A5, Q5, refer to Transmission Park Selector Switch F305, Removing and Installing .
• Audi A6, A7, refer to Controls, Housing .

-- Install the driveshaft (bolted):

• Audi A4, A5, Q5, refer to Description and Operation .
• Audi A6, A7, refer to Final Drive, Differential .

-- Fill the transmission fluid (MTF).

• Audi A4, A5, Q5, refer to Transmission Fluid .
• Audi A6, A7, refer to Final Drive, Differential .