Rear Flange Shaft Seal

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

Thrust Plate VW 401
Thrust Plate VW 402
Punch VW 409
Thrust Disc VW 412
Base Block VW 441
Thrust Piece T40190

Removing

-- Remove the center differential housing. Refer to CENTER DIFFERENTIAL HOUSING, TRANSMISSION INSTALLED .

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

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

Courtesy of AUDI OF AMERICA, LLC

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 VW 409. To do this, place the housing on the VW 401 and VW 402.

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

-- Coat outer edge of seal with gear oil.

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

-- Install the new shaft seal all the way in using the T40190. Do not bend the seal.

Fig 4: T40190

Courtesy of AUDI OF AMERICA, LLC

-- Fill the space between the sealing- and dust lip half way with sealing grease G 052 128 A1.

-- Install the flange shaft -A- into the center differential housing using the VW 441 and the VW 412. When doing this, place the housing on the VW 401 and VW 402.

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 HOUSING, TRANSMISSION INSTALLED .

-- Fill gear oil in transfer case. Refer to TRANSFER CASE GEAR OIL, FILLING AFTER REPAIR .