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Home >> Audi >> 2011 >> A8 Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Rear Final Drive 0BC, 0BD, 0BE & 0BF >> 39 Final Drive, Differential >> Removal And Installation >> Final Drive >> Final Drive 0BC >> Removing

Final Drive 0BC: Removing

General repair instructions. Refer to REPAIR INFORMATION .

-- Place the vehicle on a lift.

-- Remove the left rear wheel.

-- Remove the rear crossmember -1-.

Fig 1: Attaching Heat Shield -3- To Body -Arrows-
GWWA39-10010Courtesy of AUDI OF AMERICA, LLC
NOTE:

A second technician is needed to help remove the rear section of the exhaust system.

-- Remove the rear section of the exhaust system -2-. Refer to ENGINES CPNA - OVERVIEW - MUFFLER , ENGINES CTUB - MUFFLER OVERVIEW , ENGINES CEUA, CGTA, CTFA & CTFA - OVERVIEW - MUFFLERENGINES CDRA - EXHAUST PIPES/MUFFLERS, SEPARATING or ENGINES CEJA & CTNA - OVERVIEW - MUFFLER .

-- Remove the driveshaft from the rear final drive. Refer to INSTALL DRIVESHAFT ON REAR FINAL DRIVE .

-- Place a block of wood -A- (approximately 40 mm high) on the rear crossmember -C- to support the driveshaft -B-.

Fig 2: Identifying Wood On Rear Crossmember
GWWA39-10246Courtesy of AUDI OF AMERICA, LLC
NOTE:

The driveshaft can be bent as far as the end stop of the center joint provided that no force is used. Bending the joint forcibly to the end stop can damage the center joint and/or the protective boot.

-- Remove the driveshaft intermediate bearing mounting bolts -arrows-.

Fig 3: Identifying Mounting Bolts
GWWA34-10206Courtesy of AUDI OF AMERICA, LLC

-- Push the driveshaft forward and at the same time remove it form the rear final drive.

-- Tie the driveshaft to the side.

-- Remove the left drive axle heat shield -A- from the crossmember/rear final drive -arrows-.

Fig 4: Removing Left Driveshaft Head Shield
GWWA39-10249Courtesy of AUDI OF AMERICA, LLC

-- Remove the left -1- and right -3- drive axles.

Fig 5: Removing Left And Right Driveshaft
GWWA39-10247Courtesy of AUDI OF AMERICA, LLC

-- Loosen the bolts -2- 3 turns.

-- Remove the bolt -4-.

-- Position the Engine-Transmission Jack VAG 1383 A and the Universal Transmission Support VAG 1359/2 and a block of wood -A- (approximately 80 mm tall) under the rear final drive.

Fig 6: Placing VAG 1383 A With VAG 1359/2 And A Block Of Wood
GWWA39-10248Courtesy of AUDI OF AMERICA, LLC
NOTE:

Make sure the Universal Transmission Support VAG 1359/2 does not make contact with the fuel tank.

-- Remove the bolts -1- (lower bolts attaching the crossmember to the rear final drive) and -2-.

-- Remove the two upper bolts that connect the crossmember -B- to the rear final drive.

Fig 7: Guiding T40154 Through Holes In Subframe -A-
GWWA39-10250Courtesy of AUDI OF AMERICA, LLC

-- Guide the Socket XZN 12T40154 through the subframe opening -A-. If necessary swivel the final drive slightly left or right.

-- Move the final drive -A- forward slightly.

Fig 8: Placing VAG 1383 A With VAG 1359/2 And A Block Of Wood
GWWA39-10251Courtesy of AUDI OF AMERICA, LLC

-- Turn the lower crossmember -B- -in direction of arrow 1- and guide the final drive -arrow 2- and remove it.

NOTE:

A second technician must help with the next steps.

Before raising the left rear suspension, secure the vehicle to the lifting arm on the hose using a Tensioning Strap T10038.

-- Remove the Engine-Transmission Jack VAG 1383 A from under the final drive while a second technician keeps the rear final driving from falling down.

-- Insert the Wheel Hub Support T10149 in the Engine-Transmission Jack VAG 1383 A

-- Attach the Wheel Hub Support T10149 using a wheel bolt -arrow A- to the left rear suspension wheel hub.

Fig 9: Attaching T10149 To Suspension Left Rear Wheel Hub Using A Wheel Bolt
GWWA39-10262Courtesy of AUDI OF AMERICA, LLC

-- Lift the left rear suspension using the Engine-Transmission Jack VAG 1383 A just until the support arm -1- on the vehicle hoist just starts to lift the vehicle -arrow B-.

WARNING:
  • Do not raise or lower the vehicle if the Engine-Transmission Jack VAG 1383 A is under it.
  • Do not leave the Engine-Transmission Jack VAG 1383 A under the vehicle longer than is necessary.

-- The second technician must now push the rear final drive -1- toward the left side of the vehicle in -direction of arrow-.

Fig 10: Mounting Rear Final Drive On Subframe
GWWA39-10252Courtesy of AUDI OF AMERICA, LLC

-- Then guide the right drive axle -5- upward out of the final drive flange shaft -4-.

-- Guide the left drive axle -3- out and then, together with the second technician, remove the final drive from the subframe -2- toward the rear.

-- If the rear final drive is replaced, the balance weight -arrow- must be rebuilt on the new rear final drive Balance Weight on the Rear Final Drive .

Fig 11: Identifying Balance Weight
GWWA39-10587Courtesy of AUDI OF AMERICA, LLC