Center Differential, Removing And Installing: Installing

Install in reverse order of removal. Note the following:

-- 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: Apply A Bead Sealant Evenly And Not Too Thick On Housing Surfaces

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: Coat Both Outer Ring Surfaces On Gear Carrier Slightly With Transmission Fluid

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 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 housing and hold it securely.

Fig 4: Center Differential Housing Bolts - Attached Driveshaft

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts for the center differential housing, refer to Center Differential .

-- Install the driveshaft, refer to Removal and Installation .

-- Fill the transmission fluid (MTF), refer to Filling .