Rear Flange Shaft Seal, Removing And Installing

WARNING: This page is about a different car, the 2010 Audi A4 and 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

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.

-- Pry out the seal.

Fig 3: Prying Out Oil Seal

Courtesy of AUDI OF AMERICA, LLC

NOTE:

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

Installing

Fig 4: Identifying T40190 To Install New Shaft Seal

Courtesy of AUDI OF AMERICA, LLC

-- Coat outer edge of seal with gear oil.

Installed position: The open side of the sealing ring 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 .