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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Drivelines & Axles >> Axle Shafts >> Final Drive, Differential Rear Final Drive >> 39 Final Drive, Differential >> Final Drive >> Final Drive, Disassembling And Assembling >> REPLACE SHIFT FORK, 0B0 "quattro ultra"

REPLACE SHIFT FORK, 0B0 "quattro ultra"

Special tools and workshop equipment required 

Procedure 

-- Drain the gear oil. Refer to GEAR OIL, DRAINING AND FILLING .

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

-- Lay the final drive on a workbench.

-- Remove the All-Wheel Drive Clutch Actuator 2 -V623-. Refer to All-Wheel Drive Clutch Actuator 2 -V623-, REMOVING AND INSTALLING, 0B0 "quattro ultra", 09R "quattro ultra" .

-- Loosen the bolts -1 to 9- and disconnect the housing halves.

Fig 3: Rear Final Drive Housing Tightening Sequence
GWWA39-11018Courtesy of AUDI OF AMERICA, LLC

-- Stretch the housing half.

GWWA39-11037Courtesy of AUDI OF AMERICA, LLC

-- Pull out the gear carrier -3- using the Puller - Two Arm: T10040  .

GWWA39-11019Courtesy of AUDI OF AMERICA, LLC

-- Remove the gear carrier -1-, while this, guide out the shift fork out of the clutch module.

GWWA39-11020Courtesy of AUDI OF AMERICA, LLC

-- Remove the washer -2-.

-- Remove the springs -1-.

GWWA39-11021Courtesy of AUDI OF AMERICA, LLC

-- Remove the roller sleeves -2-.

Press out the bearing pins.

Fig 4: Press out the bearing pins.
GWWA39-11022Courtesy of AUDI OF AMERICA, LLC

-- Install the M8 collar nut -3- onto the Counterhold - Kit - Multiple Use: T10172/9  -4-.

-- Tension the gear carrier in the vise as shown -1- using the plastic clamping jaws -2-.

-- Position the sleeve -6- from the replacement parts between the shift fork -8-.

-- Press out the bearing pin -5- all the way until the thrust piece stops -4-.

-- Repeat the procedure on the other side.

Replace the shift fork.

-- Replace the parts according to repair kit.

-- Insert the pins -1- into the hole of the gear carrier -arrow A-.

GWWA39-11031Courtesy of AUDI OF AMERICA, LLC

-- Insert the shift fork -2-, in doing so, pay attention to the right installation position.

GWWA39-11032Courtesy of AUDI OF AMERICA, LLC

-- Insert the pin -3-, in order to secure the -2-.

Press in the bearing pin.

Fig 5: Press in the bearing pin.
GWWA39-11024Courtesy of AUDI OF AMERICA, LLC

-- Tension the gear carrier -2- and pin -5- as shown into the vise -4-.

-- Push in the pin -5- so far that the it is flush with the inner side of the shift fork -1-.

-- Repeat the procedure on the other side.

-- Check if the shift fork -1- can be swiveled with ease.

Assemble the final drive

-- Grease the bearing bushings -2- slightly and attach.

GWWA39-11021Courtesy of AUDI OF AMERICA, LLC

-- Insert the springs -1-.

-- Insert the clutch module -3- into the gear carrier. Pay attention that the sleeves -1- engage into the groove of the coupling sleeve -3-.

GWWA39-11026Courtesy of AUDI OF AMERICA, LLC

-- Insert the shim -3-.

GWWA39-11030Courtesy of AUDI OF AMERICA, LLC

-- Insert the gear carrier -1- into the housing together with the coupling sleeve. Pay attention that the shock absorber -2- and the centering pin are correctly positioned to the housing -arrow-. If necessary, use a mallet to drive in the gear carrier.

-- Remove the magnet -1-, clean it and re-insert.

GWWA39-11023Courtesy of AUDI OF AMERICA, LLC

-- Clean any oil and sealant residue off of the housing halves.

GWWA39-11027Courtesy of AUDI OF AMERICA, LLC

-- Apply the sealant onto the housing halves for the differential as shown.

-- Put on the housing halves and tighten the bolts.

Fig 6: Rear Final Drive Housing Tightening Sequence
GWWA39-11018Courtesy of AUDI OF AMERICA, LLC

-- Install the All-Wheel Drive Clutch Actuator 2 -V623-. Refer to All-Wheel Drive Clutch Actuator 2 -V623-, REMOVING AND INSTALLING, 0B0 "quattro ultra", 09R "quattro ultra" .

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

-- Fill the gear oil. Refer to GEAR OIL, DRAINING AND FILLING .