Flange Shaft And Driveshaft Seal On Rear Final Drive, Final Drive Removed, Removing And Installing

Special tools and workshop equipment required

Puller - Unit InjectorT10055
Rear final drive 0BN - Seal Installer - Shaft SealT10432 with T10432/1
Rear final drive 0BP - Seal Installer - Shaft SealT10431 with T10431/1
Sealing GreaseG 052 128 A1
Two 4 mm screws

Rear final drive designation and allocation. Refer to REAR FINAL DRIVE DESIGNATION 0BN AND 0BP .

Removing

-- Remove the rear final drive. Refer to REAR FINAL DRIVE, REMOVING AND INSTALLING .

-- Set the rear final drive on a workbench.

-- Remove the O-ring -1- and the locking ring -2-.

Fig 1: Identifying O-Ring And Locking Ring

Courtesy of AUDI OF AMERICA, LLC

-- To install the screws -arrows- into the dust cap, first use a needle bearing drift to punch 2 holes in the dust cap.

Fig 2: Identifying Removal Of Dust Cap Using Puller T10055 And Adapter T10055/2

Courtesy of AUDI OF AMERICA, LLC

-- Install the 4 mm diameter screws.

-- Remove dust cap using the Puller - Unit InjectorT10055.

-- Punch 2 holes into the shaft seal using a needle bearing drift -arrows-.

Fig 3: Identifying Drift To Tap Two Holes In Shaft Seal -Arrows

Courtesy of AUDI OF AMERICA, LLC

-- Install 4 mm screws.

NOTE:

Do not damage sealing surface on the input shaft when doing so.

Be careful not to install the screw too deep otherwise the bearing underneath will get damaged.

-- Use Puller - Unit InjectorT10055 to remove shaft seal from side to side.

Installing - Rear Final Drive 0BN

Fig 4: Identifying Installation Of Seal Using Assembly Tool T10432

Courtesy of AUDI OF AMERICA, LLC

-- Cover the splines on the stub shaft with adhesive tape.

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

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

-- Install the new shaft seal into the seal seat on the final drive.

-- Install the shaft seal all the way in using Seal Installer - Shaft SealT10431. Do not tilt it while installing.

-- Remove the adhesive tape.

-- Install the new dust cap using the T10432/2.

Fig 5: Identifying Installation Of Dust Cap Using Assembly Tool T10432/1

Courtesy of AUDI OF AMERICA, LLC

Installing - Rear Final Drive 0BP

Fig 6: Identifying Installation Of Seal Using Assembly Tool T10432

Courtesy of AUDI OF AMERICA, LLC

-- Cover the splines on the stub shaft with adhesive tape.

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

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

-- Install the new shaft seal into the seal seat on the final drive.

-- Install the shaft seal all the way in using Seal Installer - Shaft SealT10432. Do not tilt it while installing.

-- Remove the adhesive tape.

-- Install the new dust cap using the T10431/2.

Fig 7: Identifying Installation Of Dust Cap Using Assembly Tool T10432/1

Courtesy of AUDI OF AMERICA, LLC

Continuation for All:

Fig 8: Identifying O-Ring And Locking Ring

Courtesy of AUDI OF AMERICA, LLC

-- Install the new O-ring and locking ring. .

-- Rear Final Drive, Installing. Refer to REAR FINAL DRIVE, REMOVING AND INSTALLING .

-- Check transmission fluid level in the rear final drive. Refer to REAR FINAL DRIVE AXLE OIL LEVEL, CHECKING .