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

Install in reverse order of removal. Note the following:

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

-- 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).

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

Fig 2: Output Shaft Spacer Sleeve And Shim

Courtesy of AUDI OF AMERICA, LLC

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

Fig 3: 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 4: Identifying Differential Housing, Pressure Spring, Adjusting Shim & Plate Spring

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: 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, DifferentialFinal Drive, Differential .

-- Fill the transmission fluid (MTF).

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