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Home >> Audi >> 2021 >> A8 e Quattro >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Assembly [CZSE,CZSA] >> 10 Engine Assembly >> Engine, Removing And Installing >> Engine And Transmission, Separating

Engine And Transmission, Separating

Special tools and workshop equipment required 

Procedure 

Vehicles without high-voltage system:

-- Remove the ribbed belt tensioner for the A/C compressor. Refer to RIBBED BELT TENSIONER, REMOVING AND INSTALLING .

-- Remove the starter generator. Refer to GENERATOR, REMOVING AND INSTALLING . The subframe remains in the installed position.

Continuation for All Vehicles:

-- Remove the ATF cooler. Refer to the appropriate service information .

-- Remove the left transmission mount. Refer to LEFT TRANSMISSION MOUNT, REMOVING AND INSTALLING .

-- Remove the lower cover -1- from the transmission in direction of -arrow-.

GWWA10-11774Courtesy of AUDI OF AMERICA, LLC
GWWA13-11202Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the engine by the timing mechanism skipping.

- Only let the engine turn in the direction of engine rotation.

-- To loosen the bolts for the torque converter, counterhold the crankshaft using the :T40263  and :T40314  on the vibration damper.

-- Remove the six bolts -arrow- for the torque converter on the drive plate -1-. Turn the crankshaft an additional 60° in the direction of engine rotation.

GWWA37-11222Courtesy of AUDI OF AMERICA, LLC

-- Remove the left and right bolt -1- and nuts -arrows- for the front muffler.

GWWA26-11972Courtesy of AUDI OF AMERICA, LLC
Fig 1: Identifying Bolts
GWWA26-11144Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the coupling due to improper handling.

- Coupling must not be bent more than 10°.

- Do not load the coupling on the cable.

-- Remove the left and right bolts -arrows- and the front muffler.

-- Loosen the hose clamp -arrow- and remove the coolant hose.

GWWA10-12229Courtesy of AUDI OF AMERICA, LLC

Vehicles without high-voltage system:

Fig 2: Right Coolant Pipe
GWWA19-12795Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -2-, loosen the hose clamp -1-, and remove the right coolant pipe -3-.

-- Set up the : VAS6131B  as follows:

Fig 3: Scissor Lift Chart
GWWA10-11888Courtesy of AUDI OF AMERICA, LLC
Table Coordinates Components from the :VAS6131/10  , :VAS6131/11-1  and :VAS6131/13-7 
C3 VAS6131/13-7
C10 /10-1 /10-3 /10-5 /10-12
F10 /10-1 /10-3 /10-5 /11-1

-- Tighten the :VAS6131/13-7  in the tensioner threaded hole -arrow- for the A/C compressor ribbed belt.

GWWA10-12256Courtesy of AUDI OF AMERICA, LLC

-- Tighten the engine supports on the Scissor Lift Table to 20 Nm.

Vehicles with high-voltage system:

GWWA93-10368Courtesy of AUDI OF AMERICA, LLC

-- Release and remove the Electrical A/C Compressor High-Voltage Cable -P3- -item 2- from the Electrical A/C Compressor -V470- -item 3-.

-- To do so remove the connector lock -3- -arrow A-.

Fig 4: High-Voltage Connector, Releasing:
GWWN93-10311Courtesy of AUDI OF AMERICA, LLC

-- Press the release -4- in the -direction of the arrow B- and remove the connector -1- approximately 5 mm up to the next release point.

-- Press the release -5- in the -direction of the arrow D- and remove the connector from the connector mount -2- -arrow C-.

-- Free up the Electrical A/C Compressor High-Voltage Cable -P3- and secure to the transmission.

-- Set up the Scissor Lift Table : VAS6131B  as follows:

Fig 5: Scissor Lift Chart
GWWA10-11888Courtesy of AUDI OF AMERICA, LLC
Table Coordinates Parts from Scissor Lift Table - Audi Set :VAS6131/10  and Adapter :VAS 6131/11-1 
C10 /10-1 /10-3 /10-5 /10-12
F10 /10-1 /10-3 /10-5 /11-1

Continuation for All Vehicles:

GWWA10-12213Courtesy of AUDI OF AMERICA, LLC

-- Place the mounting element from the left :VAS6131/10  on the transmission.

-- Place the mounting elements from the :VAS6131/10  and :VAS6131/11-1  on the right of the transmission.

GWWA10-12214Courtesy of AUDI OF AMERICA, LLC

-- Turn the left and right spindles upward until all the mounting pins come into contact with the mounting points.

-- Fasten the mounting element base plates to 20 Nm on the :VAS6131B  .

-- Remove the bolts -2 through 11- that attach the engine to the transmission.

Fig 6: Engine to Transmission Bolts And Alignment Sleeves -A-
GWWA37-11081Courtesy of AUDI OF AMERICA, LLC

-- Loosen the bolt -1- for the starter using the : VAG1332/14  .

-- Loosen the clamping screws on the sides of the :VAS6131B  and pull the rear table top with the transmission slightly toward the rear in direction of -arrow-.

GWWA10-11982Courtesy of AUDI OF AMERICA, LLC

-- Pull the transmission all the way to the rear. If necessary, lower it slightly using the front spindles.