Rear Flange Shaft Seal, Removing And Installing

Special tools and workshop equipment required

Press Plate VW401
Press Plate VW402
Press Piece - Rod VW409
Press Piece - Multiple Use VW412
Base Block VW441
Seal Installer - Flange Shaft T40190

Procedure

Fig 1: Circlip On Inner Side Of Cover, Removal/Installation

Courtesy of AUDI OF AMERICA, LLC

-- Remove the center differential housing, refer to CENTER DIFFERENTIAL, REMOVING AND INSTALLING .

-- Remove the circlip -arrow- on the inside of the housing.

NOTE:

The circlip secures the flange shaft to the bearing in the housing.

-- Remove the flange shaft -A- from the center differential housing using the Press Piece - Rod VW409. To do so position the housing on the Press Plate VW401 and the Press Plate VW402.

Fig 2: Press Flange Shaft Out Of Torsen Differential Cover Using Punch VW 409

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Hold the flange shaft -A- with one hand so that it does not fall out.

Place a pry bar -A- underneath to protect the housing.

-- Pry out the seal.

Fig 3: Prying Out Oil Seal

Courtesy of AUDI OF AMERICA, LLC

Installing

Fig 4: Identifying T40190 To Install New Shaft Seal

Courtesy of AUDI OF AMERICA, LLC

-- Coat the outer edge of the shaft seal with axle oil.

Installed position: The open side of the shaft seal faces the housing.

-- Install the new shaft seal all the way in using the Seal Installer - Flange Shaft T40190. Do not bend the seal.

-- Fill the space between the sealing and dust lip halfway with Sealing Grease G 052 128 A1.

-- Install the flange shaft -A- into the center differential housing using the Base Block VW441 and the Bearing Installer - Wheel Bearing/Ball Bearing VW442. While doing so position the housing on the Press Plate VW401 and the Press Plate VW402.

Fig 5: Flange Shaft, Installation

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Install the flange shaft just far enough until it is possible to install the locking ring.

-- Install the locking ring -arrow- into the groove on the flange shaft.

Fig 6: Circlip On Inner Side Of Cover, Removal/Installation

Courtesy of AUDI OF AMERICA, LLC

-- Install the center differential housing, refer to CENTER DIFFERENTIAL, REMOVING AND INSTALLING .

-- Fill gear oil in transfer case, refer to GEAR OIL, DRAINING AND FILLING, TRANSFER CASE .